Re: Starving people refuse to eat food aid
Richard Casady
<cdim...@snet.net> wrote:
>In general, crushed traprock makes a
>good bind; whereas quartz-rich stream pebbles make a poor bind. Then
>there are places where they have used crushed schistose rock, and the
>rock itself starts fragmenting after a few years.
Des Moines used to put tar on streets and then spread crushed
quartzite, also known a little red rocks, on it. You can imagine the
road rash it can give a biker. They called this seal coating, the
bikers used to call it mayhem.
Casady
Ralph Jones
When I was living in Orange County CA circa 1969 they tried out a
paving material called Glasphalt: asphalt with "ground" glass in it
for durability and traction when wet. One residential street was paved
with the stuff as a test.
Turned out "ground" meant something more like "shattered": there were
shards a couple of inches long in it. One kid, one bike fall, end of
test.
rj
Keith F. Lynch
> When I was living in Orange County CA circa 1969 they tried out a
> paving material called Glasphalt: asphalt with "ground" glass in it
> for durability and traction when wet. One residential street was
> paved with the stuff as a test.
> Turned out "ground" meant something more like "shattered": there
> were shards a couple of inches long in it. One kid, one bike fall,
> end of test.
Ouch. I'm curious whether the shattered glass was also the cause of
the fall, perhaps by puncturing and deflating the tires.
--
Keith F. Lynch - http://keithlynch.net/
Please see http://keithlynch.net/email.html before emailing me.
Mac
wrote:
> On Fri, 11 Dec 2009 07:27:39 -0500, "Charles Wm. Dimmick"
>
> >In general, crushed traprock makes a
> >good bind; whereas quartz-rich stream pebbles make a poor bind. Then
> >there are places where they have used crushed schistose rock, and the
> >rock itself starts fragmenting after a few years.
>
> Des Moines used to put tar on streets and then spread crushed
> quartzite, also known a little red rocks, on it. You can imagine the
> road rash it can give a biker. They called this seal coating, the
> bikers used to call it mayhem.
>
> Casady
Great traction, though. Surface treatments (kinda like a "chip seal"
on dirt) sometimes will use different rock, or even sand, depending on
the characteristics wanted, on a single job. Most chip seal operators
and city specifiers are more boring, though. Just little flat rocks.
Keith F. Lynch
> Great traction, though.
Is there any solid road surface that doesn't have great traction?
I've only seen loss of traction when there was something between the
solid road surface and the tires, such as ice, loose gravel, mud, or
wet leaves.
Mac
> Is there any solid road surface that doesn't have great traction?
Sure. Smooth-troweled concrete, polished granite flags, well-
compacted (asphalt) sand mix - all downright horrible.
Unbroomed concrete, worn brick or pavers, smooth dressed puncheons or
planks, and some river-run chip seal - merely bad
Caliches, soil-cement, and lime-stabilized all vary from good to verry
poor, depending on wear and what went into them.
Asphalt mixes that have too much fines and asphalt actually depend on
minor surface deterioration for some "tooth."
> I've only seen loss of traction when there was something between the
> solid road surface and the tires, such as ice, loose gravel, mud, or
> wet leaves.
Never seen a slurry seal done on a sand-mix topped driveway or
sidewalk, before it was actually needed?
Anthony "Slick as snot comes to mind" McCafferty
R H Draney
We had a little "incident" a week before Christmas up in Prescott...apparently
someone used a supply of larger bits of glass instead of the finely powdered
stuff they normally use for de-icing...here's the story:
R H "for seal coating, I prefer a nice tempura" Draney
--
A pessimist sees the glass as half empty.
An optometrist asks whether you see the glass
more full like this?...or like this?
Lon
> Mac <ANMC...@ALUM.WPI.EDU> wrote:
>> Great traction, though.
>
> Is there any solid road surface that doesn't have great traction?
>
> I've only seen loss of traction when there was something between the
> solid road surface and the tires, such as ice, loose gravel, mud, or
> wet leaves.
I actually prefer gravel roads for serious winter driving. Less
slippery.
Richard Casady
<k...@KeithLynch.net> wrote:
>> Turned out "ground" meant something more like "shattered": there
>> were shards a couple of inches long in it. One kid, one bike fall,
>> end of test.
>
>Ouch. I'm curious whether the shattered glass was also the cause of
>the fall, perhaps by puncturing and deflating the tires.
And nobody on the paving crew smelled a rat.
Casady
Hatunen
<k...@KeithLynch.net> wrote:
>Mac <ANMC...@ALUM.WPI.EDU> wrote:
>> Great traction, though.
>
>Is there any solid road surface that doesn't have great traction?
>
>I've only seen loss of traction when there was something between the
>solid road surface and the tires, such as ice, loose gravel, mud, or
>wet leaves.
Brick roads were a disaster waiting to happen. It wouldn't be
long before the constant traffic wore the bricks to a very smooth
and polished surface. Although dry traction was fine, get even
the slightes rain and you were in big, big trouble.
--
************* DAVE HATUNEN (hat...@cox.net) *************
* Tucson Arizona, out where the cacti grow *
* My typos & mispellings are intentional copyright traps *
Tim McDaniel
Hatunen <hat...@cox.net> wrote:
>On Sun, 27 Dec 2009 19:17:25 +0000 (UTC), "Keith F. Lynch"
><k...@KeithLynch.net> wrote:
>
>>Mac <ANMC...@ALUM.WPI.EDU> wrote:
>>> Great traction, though.
>>
>>Is there any solid road surface that doesn't have great traction?
>>
>>I've only seen loss of traction when there was something between the
>>solid road surface and the tires, such as ice, loose gravel, mud, or
>>wet leaves.
British Rail that was earned justifiable derision for claiming that
delays were due to leaves on the tracks and "the wrong sort of snow".
"The *surface* has great traction. The only problem is when you get
something between it and the thing looking for traction" is not a
useful distinction if the "something between" is common.
>Brick roads were a disaster waiting to happen. It wouldn't be long
>before the constant traffic wore the bricks to a very smooth and
>polished surface. Although dry traction was fine, get even the
>slightes rain and you were in big, big trouble.
In particular, Keith lives in a town that spend a fair amount of money
to install brick sidewalks not so long ago. I left Vienna before
that, so I don't know how it performs when wet, but I think I've had
bad experiences with wet bricks elsewhere. Since ice and snow happens
in Northern Virginia from time to time, I'd love to know his
experiences walking downtown after rainstorms and after the recent
blizzard.
--
Tim McDaniel, tm...@panix.com
Keith F. Lynch
> British Rail that was earned justifiable derision for claiming that
> delays were due to leaves on the tracks and "the wrong sort of snow".
Metro says to expect delays in the fall due to leaves on the tracks.
And in the winter due to snow and ice on the tracks. And in the
summer due to heat warping the tracks. They're still trying to think
of an excuse for delays in the spring.
The good news is you only need to expect major Metro delays during
months with a vowel in them.
> In particular, Keith lives in a town that spend a fair amount of
> money to install brick sidewalks not so long ago.
True. Some of the money came from donors who in return got their
names on the bricks. I was bemused to see the name of the court-
appointed lawyer who screwed me over on one of them. (Yes, it's
the same guy.)
> I left Vienna before that, so I don't know how it performs when
> wet, ...
They've never been slippery except when there's ice. And when
there's ice it hardly matters what's underneath the ice.
However, they've started coming loose. If I don't watch my feet,
I could trip over one, regardless of the weather.
John Francis
Tim McDaniel <tm...@panix.com> wrote:
>
>British Rail that was earned justifiable derision for claiming that
>delays were due to leaves on the tracks and "the wrong sort of snow".
Eurostar appear to be carrying on the tradition.
Charles Wm. Dimmick
> True. Some of the money came from donors who in return got their
> names on the bricks. I was bemused to see the name of the court-
> appointed lawyer who screwed me over on one of them. (Yes, it's
> the same guy.)
> They've never been slippery except when there's ice. And when
> there's ice it hardly matters what's underneath the ice.
>
> However, they've started coming loose. If I don't watch my feet,
> I could trip over one, regardless of the weather.
If you do, look for the name of a lawyer on the nearest brick.
Richard Casady
>Brick roads were a disaster waiting to happen. It wouldn't be
>long before the constant traffic wore the bricks to a very smooth
>and polished surface. Although dry traction was fine, get even
>the slightes rain and you were in big, big trouble.
We have a few remaining brick streets in Des Moines. Residential
streets, not high speed roads. They last forever, and when you dig a
hole in one, it is possible to put it back the way it was.
Casady
Richard Casady
Francis) wrote:
>>British Rail that was earned justifiable derision for claiming that
>>delays were due to leaves on the tracks and "the wrong sort of snow".
>
>Eurostar appear to be carrying on the tradition.
Last time I was on a European train it just cruised 100 MPH and that
was that. Got lucky I suppose. Have had good luck with the 75 MPH US
ones as well. We slowed to ten miles an hour to cross the Mississippi
river. The conductor said that the bridge was 100 years old and they
handled it very gently.
Casady
David DeLaney
>> British Rail that was earned justifiable derision for claiming that
>> delays were due to leaves on the tracks and "the wrong sort of snow".
>
>Metro says to expect delays in the fall due to leaves on the tracks.
>And in the winter due to snow and ice on the tracks. And in the
>summer due to heat warping the tracks. They're still trying to think
>of an excuse for delays in the spring.
Young lovers on the tracks. Too wrapped up to hear the whistle.
>The good news is you only need to expect major Metro delays during
>months with a vowel in them.
And days that end in Y.
>However, they've started coming loose. If I don't watch my feet,
>I could trip over one, regardless of the weather.
This sounds like what happened gradually to the brick-paved street I know
about in Cleveland. (It's VERY short, basically one block, off the end of
Hessler St on CWR U campus, and saves Hessler from being a total dead end,
though Hessler does continue into a small culdesac. Moment... zoom zoom
zoom ... okay, Hessler Ct. Curiously, Google Maps says that Hessler & Hessler
Court are now both one-way?)
The bricks themselves weathered a bit, but the major issue was not that their
corners were getting a little crumbly, or that they got too smooth; rather,
that they went missing one by one, and sometimes in swatches. Last time I saw
it, there were asphalt patches here and there on the street just to fill the
missing-brick holes in.
Dave "oh, and _Brahtenal_ is the teeny-suburb name I can never ever remember
unless I've just seen it..." DeLaney
--
\/David DeLaney posting from d...@vic.com "It's not the pot that grows the flower
It's not the clock that slows the hour The definition's plain for anyone to see
Love is all it takes to make a family" - R&P. VISUALIZE HAPPYNET VRbeable<BLINK>
http://www.vic.com/~dbd/ - net.legends FAQ & Magic / I WUV you in all CAPS! --K.
John Francis
Oh, in general the European express trains are very good. I was just
making a snide reference to the recent debacle where cross-channel
services were shut down for several days (including four trains that
actually stopped in the tunnel) because of something that sounded
suspiciously like "the wrong kind of snow".
Hatunen
Francis) wrote:
CalTrain on the San Francisco Peninsula has had problems with wet
leaves on the track. Trains have skidded through the Millbrae or
was it Burlingame?) station due to the long row of eucalypti
along the tracks.
Hatunen
Francis) wrote:
>In article <mn0kj55mf095l4uuo...@4ax.com>,
>Richard Casady <richar...@earthlink.net> wrote:
>>On Tue, 29 Dec 2009 06:44:32 +0000 (UTC), jo...@panix.com (John
>>Francis) wrote:
>>
>>>>British Rail that was earned justifiable derision for claiming that
>>>>delays were due to leaves on the tracks and "the wrong sort of snow".
>>>
>>>Eurostar appear to be carrying on the tradition.
>>
>>Last time I was on a European train it just cruised 100 MPH and that
>>was that. Got lucky I suppose. Have had good luck with the 75 MPH US
>>ones as well. We slowed to ten miles an hour to cross the Mississippi
>>river. The conductor said that the bridge was 100 years old and they
>>handled it very gently.
>>
>>Casady
>
>Oh, in general the European express trains are very good. I was just
>making a snide reference to the recent debacle where cross-channel
>services were shut down for several days (including four trains that
>actually stopped in the tunnel) because of something that sounded
>suspiciously like "the wrong kind of snow".
My understanding is that snow collected on the French side melted
in the realtive warmth of the tunnel and dripped down into the
electrical system. Or something like that.
David DeLaney
>(It's VERY short, basically one block, off the end of
>Hessler St on CWR U campus,
"CWRU", not sure where that space snuck in.
>Dave "oh, and _Brahtenal_ is the teeny-suburb name I can never ever remember
> unless I've just seen it..." DeLaney
"Bratenahl". Looks like old age has arrived this month for me, or something.
Apologies.
Dave "the times regret the omission" DeLaney
Keith F. Lynch
> My understanding is that snow collected on the French side melted
> in the realtive warmth of the tunnel and dripped down into the
> electrical system. Or something like that.
More likely it's built to keep water out, but not tiny snow crystals
which melted only once inside.
Hatunen
<k...@KeithLynch.net> wrote:
>Hatunen <hat...@cox.net> wrote:
>> My understanding is that snow collected on the French side melted
>> in the realtive warmth of the tunnel and dripped down into the
>> electrical system. Or something like that.
>
>More likely it's built to keep water out, but not tiny snow crystals
>which melted only once inside.
You're right. According to
http://www.guardian.co.uk/travel/2009/dec/21/eurostar-problems-explained
Eurostar's technical problems explained
Eurostar services ground to a halt because particularly fine snow
falling in northern France was able to get through membranes
behind ventilation grilles on the locomotive which are fitted for
winter use, the company said.
When the England-bound trains moved from the below-freezing
conditions above ground to the 24C climate inside the tunnel, the
snow melted, affecting electronic and power systems.
The company initially blamed high levels of condensation inside
the tunnel, which remains warm throughout the year due to a
combination of its depth and the heat generated by trains passing
very regularly, with Eurostar's chief executive, Richard Brown,
describing the process as "a bit like taking a bottle of beer out
of the fridge into a warm room". This phenomenon caused problems
on the Eurostar network in February 2003.
But today, Eurostar's engineers confirmed that the anti-snow
membranes were the problem, and said these would be upgraded.
[...]
John Francis
Hatunen <hat...@cox.net> wrote:
>Eurostar's technical problems explained
>
>Eurostar services ground to a halt because particularly fine snow
>falling in northern France was able to get through membranes
>behind ventilation grilles on the locomotive which are fitted for
>winter use, the company said.
As I said - "The wrong kind of snow"
Hatunen
And as I said, "You're right."
Lon
design requirements.
Keith F. Lynch
> John Francis wrote:
>> As I said - "The wrong kind of snow"
> Quite obviously, they failed to consult the Eskimos when drafting
> the design requirements.
I sense than they also failed to consult Smilla.
Mac
> Lon <lon.stow...@comcast.net> wrote:
> > John Francis wrote:
> >> As I said - "The wrong kind of snow"
> > Quite obviously, they failed to consult the Eskimos when drafting
> > the design requirements.
>
> I sense than they also failed to consult Smilla.
Clearly senseless.