Glass baking tray explosion
Ignoramus2624
oven burner was turned on under it by accident (not by me). What is
interesting is that it exploded (shattered violently) all at once.
Utensils next to it were thrown to the floor by the force of the
explosion.
http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
What this story underscores, besides interesting physics implications,
is that trouble often comes very unexpected.
i
Ed Huntress
"Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
news:UKGdnaNkL6KECFrX...@giganews.com...
That's tempered glass. It's under intentional stress from heat-treatment,
and it shatters into small pieces that are relatively blunt. The
non-laminated safety glass in car windows does the same thing.
Your dish probably is Pyrex. I don't know if all Pyrex is tempered, or not.
But it is heat-treated.
--
Ed Huntress
CalifBill
"Ed Huntress" <hunt...@optonline.net> wrote in message
news:4ac795bd$0$4994$607e...@cv.net...
The old Pyrex did not make little pieces. Big chunks go flying. I turned
on the wrong burner about 50 years ago, and 2 baking dishes were stacked on
top of the electric burner I turned on. Shortly, and I was around the
corner luckily, there was a major explosion of glass.
David Billington
recently made and of US origin. I've used European Pyrex cookware
recently over a naked flame with no problems. IIRC the borosilicate is
less prone to thermal shock failures because the COE is very much lower
than soda lime glass.
ian field
"Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
news:UKGdnaNkL6KECFrX...@giganews.com...
An amusing science experiment is using a blowtorch to melt drips of molten
glass from a glass rod and allow the drips to fall in a bucket of water.
The glass drips are quenched in such a way that the glass 'skin' is highly
stressed, if you break one of these glass droplets it explodes.
A neat little booby trap - drop a handful in someone's toolbox.
David Billington
have the balls have one set off in your hand, sort of feels like beings
high fived very very hard. Got to do a few for a mate sometime soon.
Ignoramus2624
I do not know what was the material, the tray was likely purchased at
Wal-Mart, so I suppose that it was made in China.
I will retrieve some pieces to see if it is thermal shock resistant.
i
John Husvar
"CalifBill" <bmcke...@ix.netcom.com> wrote:
My money's on uneven stress caused by uneven heating by the surface
burner under the dish. Glass baking dishes are heated evenly by oven
heat. Heating them unevenly on a surface burner will make them go BOOM,
alright. DAMHIKT!
And now YKHYKT too.:)
axolotl
>
> Your dish probably is Pyrex.
Thinking Pyrex glass was borosilicate glass (low TC) resistant to heat
induced stress, I went to Wikipedia:
"Orignally Pyrex was made from thermal shock resistant borosilicate
glass. In 1998 Corning sold its consumer products division.......Pyrex
kitchen glassware is now made of soda lime glass...."
Jerry Pournell was right.
Kevin Gallimore
Doug Miller
>
>Jerry Pournell was right.
?
axolotl
Sturgeon pointed out that "90% of science fiction is crud".
Pournelle expanded it to "90% of everything is crud".
Kevin Gallimore
Michael Koblic
"Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
news:UKGdnaNkL6KECFrX...@giganews.com...
When I was a kid my mother served strawberries and cream in a glass bowl.
Just as the spoon lightly touched the bowl the bowl exploded with the shards
travelling across *two* rooms and (apparently round the corner) onto the
balcony. Interestingly no-one was injured.
Took a while to clean the strawberies off the walls...
--
Michael Koblic
Campbell River, BC
Wes
>Yes, see here http://en.wikipedia.org/wiki/Prince_Rupert's_Drop . If you
>have the balls have one set off in your hand, sort of feels like beings
>high fived very very hard. Got to do a few for a mate sometime soon.
David and Ian, that was facinating. I melted and bent a bit of glass from my chemistry
kit back in the day but never dropped it into water. The fun I missed ;(
Wes
--
"Additionally as a security officer, I carry a gun to protect
government officials but my life isn't worth protecting at home
in their eyes." Dick Anthony Heller
Larry Jaques
<jhu...@sbcglobal.net> scrawled the following:
CA bill said:
>> The old Pyrex did not make little pieces. Big chunks go flying. I turned
>> on the wrong burner about 50 years ago, and 2 baking dishes were stacked on
>> top of the electric burner I turned on. Shortly, and I was around the
>> corner luckily, there was a major explosion of glass.
>
>My money's on uneven stress caused by uneven heating by the surface
>burner under the dish. Glass baking dishes are heated evenly by oven
>heat. Heating them unevenly on a surface burner will make them go BOOM,
>alright. DAMHIKT!
Ditto that. It expanded in the center and the cracking rim led to the
explosion and thrust to the other dishes.
--
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore, all
progress depends on the unreasonable man.
-- George Bernard Shaw
Ignoramus2624
I bet it took some time to clean the underwear too. Scary stuff.
So, in your case, it was basically existing stresses in the glass,
right?
i
Ignoramus2624
> David Billington <d...@djbillington.freeserve.co.uk> wrote:
>
>>Yes, see here http://en.wikipedia.org/wiki/Prince_Rupert's_Drop . If you
>>have the balls have one set off in your hand, sort of feels like beings
>>high fived very very hard. Got to do a few for a mate sometime soon.
>
> David and Ian, that was facinating. I melted and bent a bit of glass from my chemistry
> kit back in the day but never dropped it into water. The fun I missed ;(
I will get some glass rods and will try just that. Seems
fascinating. Probably will try it in the front yard where no one
usually runs barefoot.
i
Ed Huntress
"John Husvar" <jhu...@sbcglobal.net> wrote in message
news:jhusvar-53554A...@news.eternal-september.org...
John, this is tempered glass. It's under compression on both surfaces and
under tension in the middle, as a result of heat treatment. It makes the
glass much tougher and resistant to cracking by bending, whether the bending
is mechanical or heat-induced. It's something like prestressed concrete in
the way the surface compression has to be "unloaded" by a lot of tension
before an actual tensile force is applied to the surface of the material.
Here's a brief description from Wikipedia:
"Toughened or tempered glass is glass that has been processed by controlled
thermal or chemical treatments to increase its strength compared with normal
glass. Tempered glass is made by processes which create balanced internal
stresses which give the glass strength. It will usually shatter into small
fragments instead of sharp shards when broken, making it less likely to
cause severe injury and deep lacerations. As a result of its safety and
strength, tempered glass is used in a variety of demanding applications,
including passenger vehicle windows, glass doors and tables, as a component
of bulletproof glass, for diving masks, and various types of plates and
cookware.
"Toughened glass is physically and thermally stronger than regular glass.
The greater contraction of the inner layer during manufacturing induces
compressive stresses in the surface of the glass balanced by tensile
stresses in the body of the glass. For glass to be considered toughened,
this compressive stress on the surface of the glass should be a minimum of
69 MPa. For it to be considered safety glass, the surface compressive stress
should exceed 100 MPa. The greater the surface stress, the smaller the glass
particles will be when broken."
Glass is one of the strongest structural materials in existence.
Unfortunately, it's extremely vulnerable to surface scratches and
imperfections. By applying compression to the outer layers, those inevitable
imperfections aren't subjected to tensile stress until the actual tensile
stress on the tempered glass is quite high.
From information others have posted here, the material that Pyrex was once
made from, borosilicate, which is very resistant to heat stresses, has been
replaced by a common type of glass, and the strength and heat resistance has
been restored somewhat by tempering. But it sounds like Pyrex ain't what it
used to be.
--
Ed Huntress
Doug White
news:qBNxm.58441$6y1....@newsfe27.ams2:
Ah yes. Prince Rupert's Drops. Lots of fun. We used to make them in
the high school chem lab. A lot of them would explode in the water after
zipping around a bit, but the ones that didn't were fished out &
cherished. They had long thin tails, and they were amazingly tough. If
you snap off the tail or crush it with pliers, kablooey!
A friend of mine had a small box with a bunch stored in it. He forgot
about them & found the box several years later. Most of them had
exploded spontaneously at soem point in the past.
A larger scale version is the Bologna Bottle. These are tough enough to
drive nails on the outside, but are easily scratched on the inside. When
you do, (you guessed it) kablooey!
Doug White
John Husvar
"Ed Huntress" <hunt...@optonline.net> wrote:
>
> From information others have posted here, the material that Pyrex was once
> made from, borosilicate, which is very resistant to heat stresses, has been
> replaced by a common type of glass, and the strength and heat resistance has
> been restored somewhat by tempering. But it sounds like Pyrex ain't what it
> used to be.
Well, that's my something new for today. :)
I've got several glass baking dishes round the place. One for sure is
Pyrex, but it's old as the hills, so I think it is borosilicate. I've
shattered tempered auto glass and CRT fronts by heating one area and
allowing it to cool naturally. After a while cooling, BANG!
So I figured that would apply to the baking dish in question.
It ain't what you know that gets you in trouble: Its what you know that
just ain't so - Twain(?)
KD7HB
>
> A larger scale version is the Bologna Bottle. These are tough enough to
> drive nails on the outside, but are easily scratched on the inside. When
> you do, (you guessed it) kablooey!
>
> Doug White
Does anyone remember the GE group that went around the country in the
1950's and put on science assemblies in High schools?
One of the demos was exactly the thing Doug wrote about. Pounded
several quite large spikes into a 2X4 and then gently dropped a small
chunk of carborundum into the flask and exactly, KABLOOEY!.
They also did a demo of a pulse jet engine. Shook the whole school. I
loved those assemblies!
Paul
John Husvar
"ian field" <gangprob...@ntlworld.com> wrote:
In a similar vein: Anybody remember the Fried Marbles fad?
Heat glass marbles in a frying pan, stirring frequently. When hot, drop
them into cold water. They'd crack internally, but the outside skin
would stay intact, until you dropped one on a hard surface or tapped one
with a hammer.
Some of them were quite pretty.
Ed Huntress
OK, here's another one for your amusement. The ultimate tensile strength of
steel piano wire, which is an exceptionally strong form of steel, runs
around 300,000 psi. The ultimate tensile strength of S-glass, which is the
material used in high-strength fiberglass, runs around 680,000 psi.
This always starts interesting discussions. <g>
--
Ed Huntress
Ignoramus2624
essentially no thermal expansion. It may be weaker than tempered
glass, but, at least, it would not explode when heated unevenly.
i
Ignoramus2624
>
> OK, here's another one for your amusement. The ultimate tensile strength of
> steel piano wire, which is an exceptionally strong form of steel, runs
> around 300,000 psi. The ultimate tensile strength of S-glass, which is the
> material used in high-strength fiberglass, runs around 680,000 psi.
>
> This always starts interesting discussions. <g>
>
And carbon nanotubes have tensile strength of up to 9,135,000 PSI.
http://en.wikipedia.org/wiki/Carbon_nanotube
(1 MPA = 145 PSI)
i
Gunner Asch
Who the hell bakes apple pies in casserol trays?
Blasphemey!!!!!!!
Gunner
Political Correctness is a doctrine fostered by a delusional,
illogical liberal minority, and rabidly promoted by an
unscrupulous mainstream media, which holds forth the
proposition that it is entirely possible to pick up a turd by the clean end.
Bill Noble
>> > This glass baking tray (with a pie in it) exploded, when a electric
>> > oven burner was turned on under it by accident (not by me). What is
>> > interesting is that it exploded (shattered violently) all at once.
>> >
>> > Utensils next to it were thrown to the floor by the force of the
>> > explosion.
>> >
>> > http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>> >
>> > What this story underscores, besides interesting physics implications,
>> > is that trouble often comes very unexpected.
>>
>>
>> An amusing science experiment is using a blowtorch to melt drips of
>> molten
>> glass from a glass rod and allow the drips to fall in a bucket of water.
>>
>> The glass drips are quenched in such a way that the glass 'skin' is
>> highly
>> stressed, if you break one of these glass droplets it explodes.
>>
>> A neat little booby trap - drop a handful in someone's toolbox.
>
> In a similar vein: Anybody remember the Fried Marbles fad?
>
> Heat glass marbles in a frying pan, stirring frequently. When hot, drop
> them into cold water. They'd crack internally, but the outside skin
> would stay intact, until you dropped one on a hard surface or tapped one
> with a hammer.
>
> Some of them were quite pretty.
in the 60s, I fried a lot of marbles .... made keychains with them - there
were special holders for this purpose.....
Ignoramus2624
> On Sat, 03 Oct 2009 13:16:57 -0500, Ignoramus2624
><ignora...@NOSPAM.2624.invalid> wrote:
>
>>This glass baking tray (with a pie in it) exploded, when a electric
>>oven burner was turned on under it by accident (not by me). What is
>>interesting is that it exploded (shattered violently) all at once.
>>
>>Utensils next to it were thrown to the floor by the force of the
>>explosion.
>>
>>http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>
>>What this story underscores, besides interesting physics implications,
>>is that trouble often comes very unexpected.
>>
>>i
>
>
> Who the hell bakes apple pies in casserol trays?
>
> Blasphemey!!!!!!!
Well, when they do not explode, the pies turn out to be quite yummy.
i
Ignoramus2624
authority.
CalifBill
"Larry Jaques" <novalidaddress@di\/ersify.com> wrote in message
news:abvfc59vn4ajdel8t...@4ax.com...
Nope, it blew the unheated 1/2 off. The stacked dishes were on the electric
burner on one end.
CalifBill
"Gunner Asch" <gun...@NOSPAMlightspeed.net> wrote in message
news:ui4gc5doouj0toiaq...@4ax.com...
> On Sat, 03 Oct 2009 13:16:57 -0500, Ignoramus2624
> <ignora...@NOSPAM.2624.invalid> wrote:
>
>>This glass baking tray (with a pie in it) exploded, when a electric
>>oven burner was turned on under it by accident (not by me). What is
>>interesting is that it exploded (shattered violently) all at once.
>>
>>Utensils next to it were thrown to the floor by the force of the
>>explosion.
>>
>>http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>
>>What this story underscores, besides interesting physics implications,
>>is that trouble often comes very unexpected.
>>
>>i
>
>
> Who the hell bakes apple pies in casserol trays?
>
> Blasphemey!!!!!!!
>
>
> Gunner
>
You does Apple Betty in casseroles.
Gunner Asch
Yabut....Square Pies????????
Geeze dude...you are in America now!!!
No need to make the Winter Palace Square Pie any longer!
<VBG>
Gunner Asch
Correct! But Apple Pie????
Yharggggggg!!!!
One supposes Iggy has a side of beets with his pie as well?
John Husvar
Gunner Asch <gun...@NOSPAMlightspeed.net> wrote:
> On Sat, 03 Oct 2009 23:04:30 -0500, Ignoramus2624
> <ignora...@NOSPAM.2624.invalid> wrote:
>
> >On 2009-10-04, Gunner Asch <gun...@NOSPAMlightspeed.net> wrote:
> >> On Sat, 03 Oct 2009 13:16:57 -0500, Ignoramus2624
> >><ignora...@NOSPAM.2624.invalid> wrote:
> >>
> >>>This glass baking tray (with a pie in it) exploded, when a electric
> >>>oven burner was turned on under it by accident (not by me). What is
> >>>interesting is that it exploded (shattered violently) all at once.
> >>>
> >>>Utensils next to it were thrown to the floor by the force of the
> >>>explosion.
> >>>
> >>>http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
> >>>
> >>>What this story underscores, besides interesting physics implications,
> >>>is that trouble often comes very unexpected.
> >>>
> >>>i
> >>
> >>
> >> Who the hell bakes apple pies in casserol trays?
> >>
> >> Blasphemey!!!!!!!
> >
> >Well, when they do not explode, the pies turn out to be quite yummy.
> >
> >i
>
> Yabut....Square Pies????????
Of course. Everybody knows pi R square.
Winston
(...)
> Of course. Everybody knows pi R square.
So, that's *you*?
http://store.theonion.com/area-man-tee-p-174.html
--Winston
--
I'm still waiting for another sublime, transcendent flash of adequacy.
Gunner Asch
wrote:
>In article <4b9gc5p62pr2vmc53...@4ax.com>,
> Gunner Asch <gun...@NOSPAMlightspeed.net> wrote:
>
>> On Sat, 03 Oct 2009 23:04:30 -0500, Ignoramus2624
>> <ignora...@NOSPAM.2624.invalid> wrote:
>>
>> >On 2009-10-04, Gunner Asch <gun...@NOSPAMlightspeed.net> wrote:
>> >> On Sat, 03 Oct 2009 13:16:57 -0500, Ignoramus2624
>> >><ignora...@NOSPAM.2624.invalid> wrote:
>> >>
>> >>>This glass baking tray (with a pie in it) exploded, when a electric
>> >>>oven burner was turned on under it by accident (not by me). What is
>> >>>interesting is that it exploded (shattered violently) all at once.
>> >>>
>> >>>Utensils next to it were thrown to the floor by the force of the
>> >>>explosion.
>> >>>
>> >>>http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>> >>>
>> >>>What this story underscores, besides interesting physics implications,
>> >>>is that trouble often comes very unexpected.
>> >>>
>> >>>i
>> >>
>> >>
>> >> Who the hell bakes apple pies in casserol trays?
>> >>
>> >> Blasphemey!!!!!!!
>> >
>> >Well, when they do not explode, the pies turn out to be quite yummy.
>> >
>> >i
>>
>> Yabut....Square Pies????????
>
>Of course. Everybody knows pi R square.
BahRumpBump!!!!
David Billington
> Ed Huntress wrote:
>
>>
>> Your dish probably is Pyrex.
>
> induced stress, I went to Wikipedia:
>
> "Orignally Pyrex was made from thermal shock resistant borosilicate
> glass. In 1998 Corning sold its consumer products division.......Pyrex
> kitchen glassware is now made of soda lime glass...."
>
> Jerry Pournell was right.
>
> Kevin Gallimore
The wiki article did say that only the US cookware pyrex is not
borosilicate and does state that the European cookware is borosilicate
so the French made stuff I bought a few months ago should be boro.
Wes
>Who the hell bakes apple pies in casserol trays?
Mom has before. She normally makes round ones though.
Wes
>
>From information others have posted here, the material that Pyrex was once
>made from, borosilicate, which is very resistant to heat stresses, has been
>replaced by a common type of glass, and the strength and heat resistance has
>been restored somewhat by tempering. But it sounds like Pyrex ain't what it
>used to be.
That green tint I see in the stuff at walmart had me thinking that the glass had changed.
This thread confirms it.
I bought some lights for our ID/OD grinders since the existing fixtures kept having their
lenses shattered when a wheel would blow. I had a choice of glass used in the new ones
and I picked borosilicate. So far, after a few years, the lenses haven't cracked.
Larry Jaques
<mko...@uniserve.com> scrawled the following:
>
>"Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
>news:UKGdnaNkL6KECFrX...@giganews.com...
>> This glass baking tray (with a pie in it) exploded, when a electric
>> oven burner was turned on under it by accident (not by me). What is
>> interesting is that it exploded (shattered violently) all at once.
>>
>> Utensils next to it were thrown to the floor by the force of the
>> explosion.
>>
>> http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>
>> What this story underscores, besides interesting physics implications,
>> is that trouble often comes very unexpected.
>>
>
>When I was a kid my mother served strawberries and cream in a glass bowl.
>Just as the spoon lightly touched the bowl the bowl exploded with the shards
>travelling across *two* rooms and (apparently round the corner) onto the
>balcony. Interestingly no-one was injured.
>
>Took a while to clean the strawberies off the walls...
That reminds me of David Eisan's post on the Wreck (almost a decade
ago; time flies!) about his kitchen incident.
--snip--
Newsgroups: rec.woodworking
From: "David F. Eisan" <dfei...@home.com>
Date: 2000/06/19
Subject: Power tools in the kitchen.
Dear All,
This afternoon I was foolishly left alone in the kitchen with a
seemingly simple task, whip some cream.
It all started when I was attempting to whip some whipping cream into,
oddly enough, whipped cream with a hand whisk, and it seemed to
require far too much effort on my part. I am sure a Neander would be
quite happy with a hand whisk, but I was looking for a Normite way to
get this done.
Now I realise that most people have a power hand mixer, or what ever
they are called, but I don't have one.
I started thinking, hmm, how much different could one of those things
be from a router. All a hand mixer is, is a motor with a Jacobs chuck
like socket for whisks. Now if you think you know where I am going
with this, you are probably correct. I got out the dial callipers and
the shaft of the hand whisk was exactly 1/4". Woo Whoo, first problem
solved, I can use the standard 1/2" to 1/4" bushing. I go out to the
shop and take my three and a quarter horse Hitachi M12V out of the
router table and back into the kitchen. Using my 21mm and custom
ground thin 23mm Craftsman wrenches, I chuck up the whisk. Next
problem, speed. I measured the diameter of the business end of the
whisk and consulted my router bit speed chart. It said I should use
18,000 RPM. The only question left was technique, clockwise or counter
clockwise. Since I was doing an inside cut, I decided on the standard
counter clockwise.
I fired up the big green monster. Good thing the M12V has a soft start
feature, because even with my elbows braced on the countertop, this is
a heavy and unwieldy router to freehand in the air, but the torque was
still more than I was prepared for and I almost lost it. Okay, here we
are, full power. There was a quick blur of chaotic white liquid
filling the air and as the blur subsided I quickly realised the bowl
that previously held two cups of whipping cream was now virtually
devoid of cream. I powered down the router. My face, glasses and upper
body were covered in cream, as were two thirds of the kitchen. My
better half, alerted by the unusual tool noise and loud cursing coming
from the kitchen, walks in to ask just what the hell I thought I was
doing. I wipe off, change clothes and come back to explain myself and
clean up a very large mess.
Once I explained what I was attempting to the young lady I thought was
about to become my ex-wife (I could see it in her face, as she
thought, I cannot believe I actually married someone this stupid, Dad
was right), who is standing in front of me with a look of such total
disbelief that I would have previously thought impossible to display,
I was told that 18,000 rpm was a little too high an rpm for a whisk,
and that a variable speed cordless drill would have been the correct
choice of tool for this task. We were out of whipping cream at this
point, so I will have to wait until after I have a chance to go to the
store tomorrow to find out if the cordless drill works any better.
Damm, now that I think about it, it would seem like the drill press is
the way to go, then I could be just like Martha Stewart, Emeril or the
Cute short blonde lady with the bob haircut who has two shows on the
food network and have one of those big stationary Kitchen Aid looking
mixer thingies, Hmmmm.....
Live and learn.
Thanks,
David.
May you live in Interesting Times - Ancient Chinese Curse.
--snip--
Larry Jaques
<jhu...@sbcglobal.net> scrawled the following:
>In article <4ac80273$0$5000$607e...@cv.net>,
> "Ed Huntress" <hunt...@optonline.net> wrote:
>
>
>>
>> From information others have posted here, the material that Pyrex was once
>> made from, borosilicate, which is very resistant to heat stresses, has been
>> replaced by a common type of glass, and the strength and heat resistance has
>> been restored somewhat by tempering. But it sounds like Pyrex ain't what it
>> used to be.
>
>Well, that's my something new for today. :)
That and Prince Rupert's Drops are mine.
>I've got several glass baking dishes round the place. One for sure is
>Pyrex, but it's old as the hills, so I think it is borosilicate. I've
>shattered tempered auto glass and CRT fronts by heating one area and
>allowing it to cool naturally. After a while cooling, BANG!
>
>So I figured that would apply to the baking dish in question.
Agreed.
>It ain't what you know that gets you in trouble: Its what you know that
>just ain't so - Twain(?)
Ayup. http://www.quotedb.com/quotes/1097
Larry Jaques
<gun...@NOSPAMlightspeed.net> scrawled the following:
>On Sat, 03 Oct 2009 13:16:57 -0500, Ignoramus2624
><ignora...@NOSPAM.2624.invalid> wrote:
>
>>This glass baking tray (with a pie in it) exploded, when a electric
>>oven burner was turned on under it by accident (not by me). What is
>>interesting is that it exploded (shattered violently) all at once.
>>
>>Utensils next to it were thrown to the floor by the force of the
>>explosion.
>>
>>http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>
>>What this story underscores, besides interesting physics implications,
>>is that trouble often comes very unexpected.
>>
>>i
>
>
>Who the hell bakes apple pies in casserol trays?
>
>Blasphemey!!!!!!!
Au contraire, mon ami! That was a larger dish than a simple pie
plate. Doesn't the concept "Mo fo me!" work for ya?
Larry Jaques
<ignora...@NOSPAM.2624.invalid> scrawled the following:
>Here's an awesome webpage, a must read on the subject, from our usual
>authority.
>
>http://www.snopes.com/food/warnings/pyrex.asp
I'll bet the phrase "scarred heavily" came from a speaking weasel
(attorney) who took up the Righteous Fight for Justice Against Lime
Glass. ;) Feh!
WARNING: Glass can shatter. Use care around it!
'Nuff said? I think so.
Ignoramus16938
> On Sat, 03 Oct 2009 23:09:12 -0500, the infamous Ignoramus2624
><ignora...@NOSPAM.2624.invalid> scrawled the following:
>
>>Here's an awesome webpage, a must read on the subject, from our usual
>>authority.
>>
>>http://www.snopes.com/food/warnings/pyrex.asp
>
> I'll bet the phrase "scarred heavily" came from a speaking weasel
> (attorney) who took up the Righteous Fight for Justice Against Lime
> Glass. ;) Feh!
>
> WARNING: Glass can shatter. Use care around it!
> 'Nuff said? I think so.
>
Larry, read that snopes webpage. It does not just shatter, it exlpodes
for almost no reason.
I want to replace my Pyrex dishes with borosilicate ones now.
i
Larry Jaques
<clu...@lycos.com> scrawled the following:
>Gunner Asch <gun...@NOSPAMlightspeed.net> wrote:
>
>>Who the hell bakes apple pies in casserol trays?
>
>
>Mom has before. She normally makes round ones though.
I've decided that apple turnovers (humongous babies) are much easier
than making apple pies. That said, I need to go pick some apples. My
Golden Delicious are ready now. I picked/halved/froze about 20 lbs of
Santa Rosa plums last week. Plum Bisquick coffee cake is ta die for.
Ed Huntress
"Ignoramus16938" <ignoram...@NOSPAM.16938.invalid> wrote in message
news:CoadnYoqJqfDTFXX...@giganews.com...
Given your proclivity for clever entrepreneurship, maybe you can make a
business out of importing them from Europe, eh?
--
Ed Huntress
Gunner Asch
<novalidaddress@di\/ersify.com> wrote:
>On Sat, 03 Oct 2009 20:12:08 -0700, the infamous Gunner Asch
><gun...@NOSPAMlightspeed.net> scrawled the following:
>
>>On Sat, 03 Oct 2009 13:16:57 -0500, Ignoramus2624
>><ignora...@NOSPAM.2624.invalid> wrote:
>>
>>>This glass baking tray (with a pie in it) exploded, when a electric
>>>oven burner was turned on under it by accident (not by me). What is
>>>interesting is that it exploded (shattered violently) all at once.
>>>
>>>Utensils next to it were thrown to the floor by the force of the
>>>explosion.
>>>
>>>http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>>
>>>What this story underscores, besides interesting physics implications,
>>>is that trouble often comes very unexpected.
>>>
>>>i
>>
>>
>>Who the hell bakes apple pies in casserol trays?
>>
>>Blasphemey!!!!!!!
>
>Au contraire, mon ami! That was a larger dish than a simple pie
>plate. Doesn't the concept "Mo fo me!" work for ya?
But...but...but...thats like serving a very very expensive 1951
Rothschild wine, hot and in a A&W rootbeer mug!!!
Its simply against the law!!! Or at the least..common decency.
Ignoramus16938
My proclivity for clever entrepreneurship is very limited. This sounds
like a great way to lose a lot of money. I am also trying, with
varying degree of success, to restrict my entrepreneurial efforts to
algebra.com only.
i
Larry Jaques
<ignoram...@NOSPAM.16938.invalid> scrawled the following:
Aw, pshaw! You're getting as gunshy as that guy from Joisey has
become. They only explode from thermal shock. Read the Origin: lines
at Snopes, eh? (shit, we can't cut'n'paste from Snopes any more) "Such
explosions have to do with the nature of the glass..."
>I want to replace my Pyrex dishes with borosilicate ones now.
Wuss. ;)
Ed Huntress
"Ignoramus16938" <ignoram...@NOSPAM.16938.invalid> wrote in message
I'm certainly not going to argue with someone who's had the experience. My
parents once made a fair amount of money importing Sabatier chef's knives
from France, but I didn't inherit the genes.
--
Ed Huntress
Ignoramus16938
>>> WARNING: Glass can shatter. Use care around it!
>>> 'Nuff said? I think so.
>>Larry, read that snopes webpage. It does not just shatter, it exlpodes
>>for almost no reason.
> Aw, pshaw! You're getting as gunshy as that guy from Joisey has
> become. They only explode from thermal shock. Read the Origin: lines
> at Snopes, eh? (shit, we can't cut'n'paste from Snopes any more) "Such
> explosions have to do with the nature of the glass..."
I have news for you, these dishes are used to hold hot things and cold
things and to be put in hot ovens.
i
Ed Huntress
"Ignoramus16938" <ignoram...@NOSPAM.16938.invalid> wrote in message
Larry misread the article. He should look around for more info on tempered
glass.
Tempered glass shatters because of a sudden release of stress in the glass,
not from thermal shock. It doesn't matter if the tipping-point stress comes
from a mechanical load or heat. Neither one causes the "explosion."
Tempered glass is compressed in the middle, and under tension on both sides.
It's the release of the INTERNAL stress, not some stress imposed from
outside, that produces the explosive results.
--
Ed Huntress
David Billington
I know you've contributed other comments to this thread with the
correct stress orientation but thought I'd just correct this one. IIRC
the whole basis of many processes which help prevent cracking is to
impart a compressive surface stress as cracks don't propagate in a
compressive stress field, only tensile.
BTW any idea if boro Pyrex is toughened, I may have to see if anyone I
know has any polarising filters and have a look for internal stress in
the stuff I have. The odd Pyrex piece I have broken, by dropping on a
hard kitchen floor, has broken into shards and not shattered like
toughened glass.
Ed Huntress
"David Billington" <d...@djbillington.freeserve.co.uk> wrote in message
news:4ac8f4ce$0$2522$da0f...@news.zen.co.uk...
Thank you. I caught it mentally as I was driving to the grocery store. Too
late. <g>
IOW, I got it backwards: Compression on the outside, chewy on the
inside...er, tension on the inside.
>
> BTW any idea if boro Pyrex is toughened, I may have to see if anyone I
> know has any polarising filters and have a look for internal stress in the
> stuff I have. The odd Pyrex piece I have broken, by dropping on a hard
> kitchen floor, has broken into shards and not shattered like toughened
> glass.
I have no idea. Wikipedia has a good section on it, I see, but I haven't had
a chance to read it. You might check there.
FWIW, my only experience at abusing Pyrex was when I made a 6" telescope
mirror out of the stuff, over 40 years ago. That piece, I'm sure, wasn't
tempered or toughened. It would have wrecked the shape.
However, that was a blank made expressly for the purpose.
--
Ed Huntress
John R. Carroll
It was indeed Ed and having gound the glass for an eight inch Newtonian, I
can tell you that is was annealed.
--
John R. Carroll
Ed Huntress
"John R. Carroll" <nu...@bidness.dev.nul> wrote in message
news:_bednUKXw6fFlFTX...@giganews.com...
That sounds right. I was working on that mirror right at the time we moved,
then I put it aside and packed it up when I got really busy. I still haven't
parabolized it. Maybe another decade or two -- if I can still find it. I
have to do it before my eyes go. <g>
--
Ed Huntress
dca...@krl.org
<d...@djbillington.freeserve.co.uk> wrote:
> BTW any idea if boro Pyrex is toughened, I may have to see if anyone I
> know has any polarising filters and have a look for internal stress in
> the stuff I have. The odd Pyrex piece I have broken, by dropping on a
> hard kitchen floor, has broken into shards and not shattered like
> toughened glass.
Since Borosilicate glass has a very low coef of expansion, I think it
would be impossible to temper it by using temperature. And since it
is about 97% quartz, I think chemical tempering as also out.
Dan
Wes
>Aw, pshaw! You're getting as gunshy as that guy from Joisey has
>become. They only explode from thermal shock. Read the Origin: lines
>at Snopes, eh? (shit, we can't cut'n'paste from Snopes any more) "Such
>explosions have to do with the nature of the glass..."
Hey Larry,
Turn off javascript for a moment. It defeats their childish trick.
Wes
Such explosions have to do with the nature of glass, which is the material used in the
manufacture of this type of bakeware. When glass changes temperature rapidly, it
experiences
thermal shock, a process wherein different parts of the material expand by different
amounts. Sometimes glass vessels are unable to take the stress of that uneven expansion
and shatter.
pyotr filipivich
or about Sun, 04 Oct 2009 10:28:02 -0700 did write/type or cause to
appear in rec.crafts.metalworking the following:
>>>Who the hell bakes apple pies in casserol trays?
>>>
>>>Blasphemey!!!!!!!
>>
>>Au contraire, mon ami! That was a larger dish than a simple pie
>>plate. Doesn't the concept "Mo fo me!" work for ya?
>
>
>But...but...but...thats like serving a very very expensive 1951
>Rothschild wine, hot and in a A&W rootbeer mug!!!
How about a cheap 1951 Rothschild wine?
>Its simply against the law!!! Or at the least..common decency.
Like putting ketchup on your eggs.
tschus
pyotr
-
pyotr filipivich
We will drink no whiskey before its nine.
It's eight fifty eight. Close enough!
Larry Jaques
<ignoram...@NOSPAM.16938.invalid> scrawled the following:
>On 2009-10-04, Larry Jaques <novalidaddress@di> wrote:
Not news. The site goes on to say (and I already knew) that thermal
shock results when the hot item is set on an ice cold countertop. Well
DUH! You won't take an item in a Pyrex container directly from the
freezer and put it in a preheated oven or onto a preheated stovetop
burner, either, if you're sane.
C'mon, Ig. 66 complaints out of how many tens of millions of lime
glass Pyrex dishes put out and used in 3 decades here in the USA? Get
real! It's a very, very slim percentage which shatters like this. In
35 years of cooking, all the Pyrex I've broken has been from dropping
on the hard floor, or dropping the lid onto the glass casserole dish.
IOW, _my_ fault, not the Pyrex'.
Lloyd E. Sponenburgh
>>>>Who the hell bakes apple pies in casserol trays?
>>>>
>>>>Blasphemey!!!!!!!
--------------
Oh, NO! Have you never tasted "Mom's Apple Cobbler" by Dixie Lily Flour
Company?
It MUST be done in a glass baking pan, and it MUST be the best
apple/flour/sugar ANYTHING anyone has ever tasted!
LLoyd
Jerry Wass
Wal--I remember the first auto matick washin mashine we had--It wuz a
Bendix with a PIEREX pie plate in the front loading door, so the cat
could watch the clothes tumblin.
James Waldby
> Larry Jaques <novalidaddress@di\/ersify.com> wrote:
>
>>Aw, pshaw! You're getting as gunshy as that guy from Joisey has become.
>>They only explode from thermal shock. Read the Origin: lines at Snopes,
>>eh? (shit, we can't cut'n'paste from Snopes any more) "Such explosions
>>have to do with the nature of the glass..."
> Turn off javascript for a moment. It defeats their childish trick.
[snip example of text pasted in]
Yes, I see that javascript function disableselect() in the html.
Two other methods in firefox to bypass that are to press either
ctrl-A (which selects all text, which you then copy/paste into an
editing window and then select the bit you want) or ctrl-U (which
opens an html source window where you can select what you want).
--
jiw
William Bagwell
>Larry Jaques <novalidaddress@di\/ersify.com> wrote:
>
>>Aw, pshaw! You're getting as gunshy as that guy from Joisey has
>>become. They only explode from thermal shock. Read the Origin: lines
>>at Snopes, eh? (shit, we can't cut'n'paste from Snopes any more) "Such
>>explosions have to do with the nature of the glass..."
>
>
>
>Hey Larry,
>
>Turn off javascript for a moment. It defeats their childish trick.
I'm assuming you use Firefox... Will that trick work with modern versions of
IE? Years ago you had to close and re-open IE for this change to take affect.
Thus creating a paradox on sites which would not display the content to those
with Java script turned off.
Vaguely remember an ugly work around for this one as well. Switched to Linux
seven years ago, and appreciate these little reminders of just why:)
--
William
Larry Jaques
<clu...@lycos.com> scrawled the following:
>Larry Jaques <novalidaddress@di\/ersify.com> wrote:
>
>>Aw, pshaw! You're getting as gunshy as that guy from Joisey has
>>become. They only explode from thermal shock. Read the Origin: lines
>>at Snopes, eh? (shit, we can't cut'n'paste from Snopes any more) "Such
>>explosions have to do with the nature of the glass..."
>
>Hey Larry,
>
>Turn off javascript for a moment. It defeats their childish trick.
Hey, good trick, Wes. JS abort measures usually come with a warning.
Theirs didn't and I didn't look.
Larry Jaques
<ph...@mindspring.com> scrawled the following:
>Let the Record show that Gunner Asch <gun...@NOSPAMlightspeed.net> on
>or about Sun, 04 Oct 2009 10:28:02 -0700 did write/type or cause to
>appear in rec.crafts.metalworking the following:
>
>>>>Who the hell bakes apple pies in casserol trays?
>>>>
>>>>Blasphemey!!!!!!!
>>>
>>>Au contraire, mon ami! That was a larger dish than a simple pie
>>>plate. Doesn't the concept "Mo fo me!" work for ya?
>>
>>
>>But...but...but...thats like serving a very very expensive 1951
>>Rothschild wine, hot and in a A&W rootbeer mug!!!
>
> How about a cheap 1951 Rothschild wine?
>
>>Its simply against the law!!! Or at the least..common decency.
>
> Like putting ketchup on your eggs.
Ewwwwwwwwwwwwwwwwwwwwwwwwwww!
Listen up, boys: _Any_ dish, if large enough, is OK for apple
pie/betty/cobbler/streudel/tarts/fritters/crisp, GOT IT?
Good!
cavelamb
Michael Koblic
"Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
news:AdGdnYMhTbnonFXX...@giganews.com...
> On 2009-10-04, Michael Koblic <mko...@uniserve.com> wrote:
>>
>> "Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
>> news:UKGdnaNkL6KECFrX...@giganews.com...
>>> This glass baking tray (with a pie in it) exploded, when a electric
>>> oven burner was turned on under it by accident (not by me). What is
>>> interesting is that it exploded (shattered violently) all at once.
>>>
>>> Utensils next to it were thrown to the floor by the force of the
>>> explosion.
>>>
>>> http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>>
>>> What this story underscores, besides interesting physics implications,
>>> is that trouble often comes very unexpected.
>>>
>>
>> Just as the spoon lightly touched the bowl the bowl exploded with the
>> shards
>> travelling across *two* rooms and (apparently round the corner) onto the
>> balcony. Interestingly no-one was injured.
>>
>> Took a while to clean the strawberies off the walls...
>>
>
> I bet it took some time to clean the underwear too. Scary stuff.
>
> So, in your case, it was basically existing stresses in the glass,
> right?
>
I have not better explanation.
Joseph Gwinn
"ian field" <gangprob...@ntlworld.com> wrote:
> "Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
> news:UKGdnaNkL6KECFrX...@giganews.com...
> > This glass baking tray (with a pie in it) exploded, when a electric
> > oven burner was turned on under it by accident (not by me). What is
> > interesting is that it exploded (shattered violently) all at once.
> >
> > Utensils next to it were thrown to the floor by the force of the
> > explosion.
> >
> > http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
> >
> > What this story underscores, besides interesting physics implications,
> > is that trouble often comes very unexpected.
>
>
> An amusing science experiment is using a blowtorch to melt drips of molten
> glass from a glass rod and allow the drips to fall in a bucket of water.
>
> The glass drips are quenched in such a way that the glass 'skin' is highly
> stressed, if you break one of these glass droplets it explodes.
They were called "Czar's Tears", if memory serves.
Joe Gwinn
John Husvar
Larry Jaques <novalidaddress@di\/ersify.com> wrote:
> On Sun, 04 Oct 2009 07:52:39 -0400, the infamous Wes
> <clu...@lycos.com> scrawled the following:
>
> >Gunner Asch <gun...@NOSPAMlightspeed.net> wrote:
> >
> >>Who the hell bakes apple pies in casserol trays?
> >
> >
> >Mom has before. She normally makes round ones though.
>
> I've decided that apple turnovers (humongous babies) are much easier
> than making apple pies. That said, I need to go pick some apples. My
> Golden Delicious are ready now. I picked/halved/froze about 20 lbs of
> Santa Rosa plums last week. Plum Bisquick coffee cake is ta die for.
>
Damn you, I'm going to be craving fruit pastries all damn day now! :)
Edward A. Falk
Ed Huntress <hunt...@optonline.net> wrote:
>
>From information others have posted here, the material that Pyrex was once
>made from, borosilicate, which is very resistant to heat stresses, has been
>replaced by a common type of glass, and the strength and heat resistance has
>been restored somewhat by tempering. But it sounds like Pyrex ain't what it
>used to be.
Snopes has a good article on it:
http://www.snopes.com/food/warnings/pyrex.asp
European Pyrex is still borosilicate, but in the U.S. it's now made
of soda lime glass.
Although to be honest, I can't imagine *any* kind of glass surviving
being left directly on an electric stove like that.
--
-Ed Falk, fa...@despams.r.us.com
http://thespamdiaries.blogspot.com/
dca...@krl.org
I misremembered. Borosilicate glass is more like 80% quartz. Vycor
is the one that is about 97 % quartz. But I do not think that
Borosilicate glass could be tempered chemically in the way that sodium
glass is tempered.
Vycor is Borosilicate glass that has been chemically modified to make
it have a lower coef of expansion. So you could say that Borosilicate
glass can be made more resistant to breaking from heating and cooling.
Larry Jaques
<jhu...@sbcglobal.net> scrawled the following:
Bwahahahaha! So, John, didja go out and buy one today? I still have
some banana bread I made so I won't be making another plum coffee cake
for a few more days.
ian field
"Doug White" <gwh...@alum.mit.edu> wrote in message
news:Xns9C99E0C5991B6...@69.16.186.7...
> "ian field" <gangprob...@ntlworld.com> wrote in
> news:qBNxm.58441$6y1....@newsfe27.ams2:
>
>>
>> "Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
>> news:UKGdnaNkL6KECFrX...@giganews.com...
>>> This glass baking tray (with a pie in it) exploded, when a electric
>>> oven burner was turned on under it by accident (not by me). What is
>>> interesting is that it exploded (shattered violently) all at once.
>>>
>>> Utensils next to it were thrown to the floor by the force of the
>>> explosion.
>>>
>>> http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>>>
>>> What this story underscores, besides interesting physics
>>> implications, is that trouble often comes very unexpected.
>>
>>
>> An amusing science experiment is using a blowtorch to melt drips of
>> molten glass from a glass rod and allow the drips to fall in a bucket
>> of water.
>>
>> The glass drips are quenched in such a way that the glass 'skin' is
>> highly stressed, if you break one of these glass droplets it explodes.
>>
>
> Ah yes. Prince Rupert's Drops. Lots of fun. We used to make them in
> the high school chem lab. A lot of them would explode in the water after
> zipping around a bit, but the ones that didn't were fished out &
> cherished. They had long thin tails, and they were amazingly tough. If
> you snap off the tail or crush it with pliers, kablooey!
>
> A friend of mine had a small box with a bunch stored in it. He forgot
> about them & found the box several years later. Most of them had
> exploded spontaneously at soem point in the past.
There was probably only one or two went spontaneously, the rest would have
been a chain reaction.
Years ago I read somewhere about chain reactions at CRT manufacturing plant,
one tube in the line would spontaneously implode and the flying chunks of
glass knocked off the tube either side, sometimes the effect would shoot
along the line in both directions like falling dominoes.
John Husvar
Larry Jaques <novalidaddress@di\/ersify.com> wrote:
> On Mon, 05 Oct 2009 09:05:21 -0400, the infamous John Husvar
> <jhu...@sbcglobal.net> scrawled the following:
> >
> >Damn you, I'm going to be craving fruit pastries all damn day now! :)
>
> Bwahahahaha! So, John, didja go out and buy one today? I still have
> some banana bread I made so I won't be making another plum coffee cake
> for a few more days.
>
Nah, dammit, I managed to control myself and keep to my weight-loss
program. Trying to keep from getting too heavy to handle my wheelchair
easily. It's great upper body exercise, until your shoulders give out.
Power chair's nice, but doesn't do a damn thing for your muscle tone.
However: Sometimes self-discipline SUCKS! :)
Larry Jaques
<jhu...@sbcglobal.net> scrawled the following:
>In article <oqelc5dr7cps08bes...@4ax.com>,
> Larry Jaques <novalidaddress@di\/ersify.com> wrote:
>
>> On Mon, 05 Oct 2009 09:05:21 -0400, the infamous John Husvar
>> <jhu...@sbcglobal.net> scrawled the following:
>> >
>> >Damn you, I'm going to be craving fruit pastries all damn day now! :)
>>
>> Bwahahahaha! So, John, didja go out and buy one today? I still have
>> some banana bread I made so I won't be making another plum coffee cake
>> for a few more days.
>>
>
>Nah, dammit, I managed to control myself and keep to my weight-loss
>program. Trying to keep from getting too heavy to handle my wheelchair
>easily. It's great upper body exercise, until your shoulders give out.
>
>Power chair's nice, but doesn't do a damn thing for your muscle tone.
Sure they do. Simply do your pullups and chinups with the chair
strapped to your waist. Talk about wonderful upper body exercise...
>However: Sometimes self-discipline SUCKS! :)
Just _sometimes_?
--
Reading well is one of the great pleasures that solitude can afford you.
-- Harold Bloom, O Magazine, April 2003
Leon Fisk
<jhu...@sbcglobal.net> wrote:
<snip>
>Nah, dammit, I managed to control myself and keep to my weight-loss
>program. Trying to keep from getting too heavy to handle my wheelchair
>easily. It's great upper body exercise, until your shoulders give out.
This article was geared more towards runners, but it should
also apply to you:
http://www.npr.org/templates/story/story.php?storyId=112556135
Unless you have a bad genetic trait or some old injury, odds
are good that you won't be wearing out those shoulders. I
ran down some other articles too after hearing/reading that
one. They pretty much agreed with it.
I sympathize with your situation, I run and walk a lot to
keep my weight inline. Still enjoy eating, not much else...
hard enough to do with my legs intact.
--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email
Gerald Miller
Don't know about baking dishes or CRT's but I have seen several
bottles of home brew in a plastic case blow in sequence.
Gerry :-)}
London, Canada
John Husvar
Leon Fisk <lf...@no.spam.iserv.net> wrote:
> On Tue, 06 Oct 2009 10:44:01 -0400, John Husvar
> <jhu...@sbcglobal.net> wrote:
>
> <snip>
> >Nah, dammit, I managed to control myself and keep to my weight-loss
> >program. Trying to keep from getting too heavy to handle my wheelchair
> >easily. It's great upper body exercise, until your shoulders give out.
>
> This article was geared more towards runners, but it should
> also apply to you:
>
> http://www.npr.org/templates/story/story.php?storyId=112556135
>
> Unless you have a bad genetic trait or some old injury, odds
> are good that you won't be wearing out those shoulders. I
> ran down some other articles too after hearing/reading that
> one. They pretty much agreed with it.
Well, I have a fair collection of old injuries, but no major shoulder
ones. Good news maybe? I used to do 5 miles a day in my manual chair, as
an excuse to get out of the house and to meet 'n' greet neighbors. I
suppose I could start those daily "walks" again. Build back the mileage
slowly.
MS has a way of making me feel fatigued whether I do anything strenuous
or not.
Thanks to it and a pre-diagnosis spinal cord injury, it's sometimes too
easy to just vegetate. :)
John Husvar
Larry Jaques <novalidaddress@di\/ersify.com> wrote:
> On Tue, 06 Oct 2009 10:44:01 -0400, the infamous John Husvar
> <jhu...@sbcglobal.net> scrawled the following:
>
> >Power chair's nice, but doesn't do a damn thing for your muscle tone.
>
> Sure they do. Simply do your pullups and chinups with the chair
> strapped to your waist. Talk about wonderful upper body exercise...
If I ever get to where I can do pullups with 300 pounds of power
wheelchair strapped on, I won't need to worry abut overeating fruit
pastries! (or paying for them: Guiness, Ripley's, here I come!:)
MMMMMMMMMMMMMMMM, Guiness!
> >However: Sometimes self-discipline SUCKS! :)
>
> Just _sometimes_?
OK, most of the time.
<Speaking of discipline: Off to more dry-firing the SV40E>
snowbertca
Has anyone had any experience using Visions cookware as a crucible for
aluminum or pot metal ? I used a cast iron pot to melt aluminum as
described in the Dave Gingery books and wondered if anyone has tried
this.
Larry Jaques
<jhu...@sbcglobal.net> scrawled the following:
>In article <pt0nc553ffnumc1c8...@4ax.com>,
> Larry Jaques <novalidaddress@di\/ersify.com> wrote:
>
>> On Tue, 06 Oct 2009 10:44:01 -0400, the infamous John Husvar
>> <jhu...@sbcglobal.net> scrawled the following:
>>
>> >Power chair's nice, but doesn't do a damn thing for your muscle tone.
>>
>> Sure they do. Simply do your pullups and chinups with the chair
>> strapped to your waist. Talk about wonderful upper body exercise...
>
>If I ever get to where I can do pullups with 300 pounds of power
>wheelchair strapped on, I won't need to worry abut overeating fruit
>pastries!
You'd sure be in shape then, right? ;)
>(or paying for them: Guiness, Ripley's, here I come!:)
>
>MMMMMMMMMMMMMMMM, Guiness!
Eek! Having quit long ago, I no longer see how I could have -ever-
stomached beer. It just reeks to me now.
>> >However: Sometimes self-discipline SUCKS! :)
>>
>> Just _sometimes_?
>
>OK, most of the time.
>
><Speaking of discipline: Off to more dry-firing the SV40E>
La Pistola? I should re-up at the range and go practice with all my
weapons, too. The need for self-defense appears to be skyrocketing
these days.
Michael A. Terrell
axolotl wrote:
>
> Doug Miller wrote:
> > In article <ha8gqe$ds5$1...@news.eternal-september.org>, axolotl <munge...@shorecomp.com> wrote:
> >
> >>Jerry Pournell was right.
> >
> >
> > ?
> Pournelle is known for revising Sturgeon's Law.
>
> Sturgeon pointed out that "90% of science fiction is crud".
>
> Pournelle expanded it to "90% of everything is crud".
I didn't know that Pournelle wrote 90% of the science fiction books.
--
The movie 'Deliverance' isn't a documentary!
cavelamb
> axolotl wrote:
>> Doug Miller wrote:
>>> In article <ha8gqe$ds5$1...@news.eternal-september.org>, axolotl <munge...@shorecomp.com> wrote:
>>>
>>>> Jerry Pournell was right.
>>>
>>> ?
>> Pournelle is known for revising Sturgeon's Law.
>>
>> Sturgeon pointed out that "90% of science fiction is crud".
>>
>> Pournelle expanded it to "90% of everything is crud".
>
>
> I didn't know that Pournelle wrote 90% of the science fiction books.
>
>
Larry Niven wrote the rest...
:)
Michael A. Terrell
Larry Jaques wrote:
>
> Aw, pshaw! You're getting as gunshy as that guy from Joisey has
> become. They only explode from thermal shock. Read the Origin: lines
> at Snopes, eh? (shit, we can't cut'n'paste from Snopes any more) "Such
> explosions have to do with the nature of the glass..."
Sure you can. Just 'View Page Source' and copy it from there. Here
is a snip from that page:
About 5:30 PM there was a loud bang from the oven. Sylvia opened the
oven door and the Pyrex dish had shattered into a million pieces. The
roast beef (our first in many months) was peppered with small shards of
very sharp glass. Normally, I am quick to inform Sylvia she did
something stupid. However, this time she was nowhere near the stove when
it blew. I shoveled the glass and the now mashed potatoes into a bucket
with two putty knives. I then sucked the remains with the shop vac. I
let everything cool down and then scrubbed the oven with Simple Green
and some hot soapy water. It took over an hour to clean up the goo.
Upon completion I ran the oven empty to see if the temperature
controller was working okay. I suspected the oven got too hot and the
dish simply blew. This was not the case however. The oven came up to
temperature and cycled normally. We threw a disgusting frozen pizza in
the oven and it cooked okay.
What is going on?
I Googled exploding Pyrex dishes and got ten million hits. Exploding
Pyrex is very common.
Here is the story.
Leon Fisk
<jhu...@sbcglobal.net> wrote:
<snip>
>Well, I have a fair collection of old injuries, but no major shoulder
>ones. Good news maybe? I used to do 5 miles a day in my manual chair, as
>an excuse to get out of the house and to meet 'n' greet neighbors. I
>suppose I could start those daily "walks" again. Build back the mileage
>slowly.
>
>MS has a way of making me feel fatigued whether I do anything strenuous
>or not.
>
>Thanks to it and a pre-diagnosis spinal cord injury, it's sometimes too
>easy to just vegetate. :)
Well I feel like crap, tired most of the time too and I
don't have any good reason for it, far as I can tell. I
figured it was just getting old and there really isn't
anything I looking forward to doing (other than eating).
My hats off to you, you're handling the situation a whole
heck of a lot better than myself...
Michael A. Terrell
That is why I am reading early Science Fiction, from before they
screwed up the concept.
Gunner Asch
wrote:
I started feeling like that last August. It grew a bit worse through
January.
Then I had a heart attack because all the arteries on the left side of
my heart finally gave full notice they were plugged up.
Im only 55. Im in good conditon..in fact I was in better condition that
guys half my age. Could lift more, run farther, work longer etc etc
Which saved my life by the doctors admissions. If Id not been in such
damned good shape..Id never have made it to the ER, let along walked in
and asked to speak to a doctor.
Get yourself checked out..and get a second opinion.
In November, Bakersfield Heart Hospital told me everything was fine..I
simply had bronchitus and sent me home after billing me $15,000 for 8
hours sitting and 30 minutes with a nurse practicioner.
Gunner
GUNNER'S PRAYER:
"God grant me the serenity to accept the people
that don't need to get shot, the courage to shoot
the people that need shooting and the wisdom to know the difference.
And if need be, the skill to get it done before I have to reload."
0
William Wixon
"Ignoramus2624" <ignora...@NOSPAM.2624.invalid> wrote in message
news:UKGdnaNkL6KECFrX...@giganews.com...
> This glass baking tray (with a pie in it) exploded, when a electric
> oven burner was turned on under it by accident (not by me). What is
> interesting is that it exploded (shattered violently) all at once.
>
> Utensils next to it were thrown to the floor by the force of the
> explosion.
>
> http://igor.chudov.com/tmp/Glass-Baking-Tray-Explosion/
>
> What this story underscores, besides interesting physics implications,
> is that trouble often comes very unexpected.
>
i just got one of those long forwarded messages on this topic.
Date: Wednesday, October 7, 2009, 10:00 AM
http://www.consumeraffairs.com/homeowners/pyrex..html
Got any new Pyrex dishes in your cooking utensils? This is a must read.
I Checked at Wall Mart and all the warnings are there.
About 5:30 PM there was a loud bang from the oven. Sylvia opened the oven
door and the Pyrex dish had shatt ered into a million pieces. The roast beef
(our first in many months) was peppered with small shards of very sharp
glass . Normally,I am quick to inform Sylvia she did something stupid.
However,this time she was nowhere near the stove when it blew. I shoveled
the glass and the now mashed potatoes into a bucket with two putty knives.
I then sucked the remains with the shop vac. I let everything cool down and
then scrubbed the oven with Simple Green and some hot soapy water. It took
over an hour to clean up the goo. Upon completion I ran the oven empty to
see if the temperature controller was working okay. I suspected the oven
got too hot and the dish simply blew. This was not the case however. The
oven came up to temperature and cycled normally. We threw a disgusting
frozen pizza in the oven and it cooked okay.
What is going on?
I Googled exploding Pyrex dishes and got ten million hits.
Exploding Pyrex is very common.
Here is the story.
A long, long time ago in a country we all know and love was a company named
Corning. They made Pryex dishes. The material they used is called
borosilicate glass. This stuf f is indestructible.
But like everything else, the Bottom Liners had a great idea: sell the
technology to another company. The Chinese discovered that using soda lime
glass was almost as good as borosilicate glass and a lot cheaper. Today,
Wal-Mart is the largest distributor of Pryex products. Corning not only
sold the technology to a company called World Kitchen, they also sold the
rights to the original Pyrex logo. Seamless. The consumer will never know.
Now it seems people are getting hurt using soda lime Pyrex. We were lucky
because the dish broke while the oven was closed and the damage was limited
to the oven cavity. Others have been less fortunate. Some dishes explode
when they are lifted from the heating rack in the oven with devastating
results. Some people are heavily scarred. World Kitchen is in denial.
They say that the dishes are another brand, not theirs . Contrary to their
denials the victims usually have more than one of these dishes and the Pryex
logo is clearly visible.
If you buy a Pryex dish beware. The label on the front says oven safe,
freezer safe, microwave safe. The instructions on the back tell another
story. You cannot move a soda lime Pyrex dish from the freezer to the oven
and expect it to survive. The fine print goes on and on about what you are
not allowed to do with the Pyrex dish. The fine print has prevented World
Kitchen from being sued because they have warned the consumer that their
Pyrex dishes are junk from the get go. And they are the same price as the
original Corning dishes. What a bunch of losers we all are for buying this
crap.
What to do?
If you own borosilicate Pryex dishes no fear. They have to be more than 25
years old to be sure they are indeed Corning dishes. I am not sure if
the20old Pryex dishes have anything stamped in them that indicates they are
made by Corning.. You may continue to use the soda lime dishes for holding
stuff. Just do not attempt to roast or microwave with them as the hazard is
very clear.
The reason the soda lime dishes let go is that over time they develop
micro-cracks. Once a few micro-cracks are present and once some liquid
finds its way into the cracks you have the bomb situation. The liquid is
like shoving a crowbar in the dish and pulling it apar t. Super heated
liquids expand rapidly and it is the super heated liquids that force the
soda lime glass to shatter into tens of thousands of shards.
Since Corning no longer makes Pyrex and Sylvia proudly holds a large
collection of the soda lime Pyrex, we decided that one bomb in the kitchen
is enough. The Pyrex dishes will go bye-bye in this week's trash. I do not
know what we will use for cake and pie dishes going forward . If you have
some suggestions we are listening.
I strongly urge you not to use the s oda lime Pyrex for the oven, stovetop
or microwave. The slightest invisible crack is all it takes to have a mess
and a possible injury.
Leon Fisk
<gun...@NOSPAMlightspeed.net> wrote:
>>On Wed, 07 Oct 2009 13:45:35 -0400, Leon Fisk <lf...@no.spam.iserv.net>
>>wrote:
<snip>
>>Well I feel like crap, tired most of the time too and I
>>don't have any good reason for it, far as I can tell. I
>>figured it was just getting old and there really isn't
>>anything I looking forward to doing (other than eating).
<snip>
>Get yourself checked out..and get a second opinion.
Thanks for the concern/suggestions Gunner, but I'm quite
sure the real problem lies somewhere between my ears.
Do you remember the old movie "Short Circuit" and Number 5
saying "more input, NEED MORE INPUT!". More input is what
turns my screws other than eating. Not just any input, but
something like hiking to a waterfall, champion tree,
learning a new software program, updating an old software
program, learning how to use new (new to me at least)
tools/equipment... just can't afford the budget to do that
all the time.
I'm sure there are plenty of other people with the same
problem, they just seem to deal with it better. And then
there are those who seem to be happy and refreshed to just
wake up every morning ;-)