*Ok, whiteboard.
As an aside, in older classrooms in school and in college, have they
replaced traditional real chalk blackboards, or is chalk still used?
Isn't chalk a heck of a lot cheaper than erasable markers? It seems
those markers run out very quickly.
If a new school or college classroom is built, do they use whiteboards
or chalkboards?
Wasn't this topic just beaten to death here recently?
Neigh!
/BAH
Dead horses don't talk.
--
/~\ cgi...@kltpzyxm.invalid (Charlie Gibbs)
\ / I'm really at ac.dekanfrus if you read it the right way.
X Top-posted messages will probably be ignored. See RFC1855.
/ \ HTML will DEFINITELY be ignored. Join the ASCII ribbon campaign!
> Isn't chalk a heck of a lot cheaper than erasable markers?
Not only that, but it doesn't give off toxic fumes. Unless you can get
silicosis from chalk dust.
John Savard
[Schnipp]
>If a new school or college classroom is built, do they use whiteboards
>or chalkboards?
At my sons school (a primary school) it's a mixture of a whiteboard,
computerdisplay and inputdevice.
--
Jan van den Broek balg...@xs4all.nl
I have a great .sig, but it won't fit at the end of this post.
-Fermat
> On Oct 12, 8:35 pm, hanco...@bbs.cpcn.com wrote:
>
>> Isn't chalk a heck of a lot cheaper than erasable markers?
I'm guessing that that's why the sales guy likes it!
> Not only that, but it doesn't give off toxic fumes. Unless you can get
> silicosis from chalk dust.
>
--
Nuns! Reverse!
They just opened a new engineering building at Cooper Union,
and although I've seen white boards there, the classrooms
I'm in have real blackboards.
You can get whiteboards that get around that. The "markers"
have dry felt tips. The board is wired to a PC that uses a
projector to display an image on the white screen.
The markers are tracked by the computer which draws
an image (the computer even knows which marker is the
red, blue, black, etc.. It even has large circular pads
that serve as erasers. And the PC can save the image.
Very neat system, although I imagine a bit pricey.
I repackaged one of these apps for XP.
Mimio capture I think;
http://www.mimio.com/products/ink_capture_kit/index.asp
it is/was a halfway job, you have a marker pen in a holder, and the
movement is captured (wirelessly) to computer to allow easy reproduction
of the presentation.
>> Unless you can get
>> silicosis from chalk dust.
>>
>> John Savard
>
--
Nuns! Reverse!
A great technological advance. A $50,000 system (or whatever) that does
the same job as a $500 blackboard (ditto).
I remember blackboards which were green. Very hard to see the chalk
marks.
/BAH
> On Oct 14, 2:57?pm, Quadibloc <jsav...@ecn.ab.ca> wrote:
> > On Oct 12, 8:35?pm, hanco...@bbs.cpcn.com wrote:
> >
> > > Isn't chalk a heck of a lot cheaper than erasable markers?
> >
> > Not only that, but it doesn't give off toxic fumes.
>
> You can get whiteboards that get around that. The "markers"
> have dry felt tips. The board is wired to a PC that uses a
> projector to display an image on the white screen.
> The markers are tracked by the computer which draws
> an image (the computer even knows which marker is the
> red, blue, black, etc.. It even has large circular pads
> that serve as erasers. And the PC can save the image.
> Very neat system, although I imagine a bit pricey.
>
> > Unless you can get
> > silicosis from chalk dust.
> >
> > John Savard
Very neat, the lecturer can put up notes, and make live comments on the
board, and even save the comments in an editable form.
--
A computer without Microsoft is like a chocolate cake without mustard.
Yeah, but you'll not need to buy any chalk!
Did yellow chalk work better?
>
> /BAH
They were green at one of my schools - the Maths teacher used to use
yellow chalk, just to confuse us :-)
Nope, but you will need replacement bulbs for the projector;
and you'll need to replace the PC every few years.
Chalk is cheaper.
scott
I wasn't formulating clearly enough, the board itself is a so called
"smartboard", a mixture of etc.
--
__________________________________________________________________________
Jan van den Broek -----_____ In remembrance of Eustachius Warszebald
balg...@xs4all.nl -----_____ Herdenkt Eustachius Warszebald
--------------------------------------------------------------------------
> I remember blackboards which were green. Very hard to see the chalk
> marks.
Yes, that was "new" in the late 1960s, I think. Maybe it was an
aritifical material (I think real classic blackboards were made of
slate).
I don't recall any problem seeing the white on green. Like a highway
sign.
As an aside, I remember an office supply catalog. Chalk was far
cheaper than markers. Also, notably, a black/greenboard was cheaper
than a whiteboard.
Our 20 y/o bldg was equipped with whiteboards, so they've been around
quite a while. That's why I wonder if schools and colleges replaced
their classic blackboards, or what they use in new buildings, even in
public schools.
> Nope, but you will need replacement bulbs for the projector;
> and you'll need to replace the PC every few years.
I haven't see any presentations in a long time via an overhead
projector with transparencies. I think PC projectors and PowerPoint
made those obsolete.
I have not seen in a very long time presentations by 16 mm projector.
The last one was in an IBM class maybe 15 years (or more) ago and the
film itself was old (1960s), but the film was very good.
We watch stuff now right at our desks piped through the network.
However, Kodak still makes a full line of 16 mm movie films, so
someone is still shooting them, and I believe film students still use
16 mm. A few TV shows, like VM and B/VS, were done in 16 mm.
(I was reading a 1985 article on Kodachrome, and the article pondered
when Kodachrome would be discontinued. The article, even back then,
recognized that Ektachrome was so much easier to process and thus more
desirable to many photographers, and that electronic imaging was
coming of age. I wonder what the National Geographic, a very big
Kodachrome user, was using of late and what they'll do in the future
with it discontinued. If I could find a roll I'd shoot it for old
time's sake.)
Better hurry on Kodachrome. The lab is closing.
I recently was in the studio of a commercial photographer who
specialized in furniture ads. They'd stopped using film long ago. The
demise of film in advertising was gradual. It started with publishers
scanning images to make printing plates instead of using graphics arts
cameras, filters and halftone screens to make printing plates. Once
big digital sensors arrived film was on the outs.
Bud
/BAH
"Quadibloc" <jsa...@ecn.ab.ca> wrote in message
news:2e1d2d0d-6587-424f...@y28g2000prd.googlegroups.com...
Give me marker pens any day. Don't any of you remember the layers of chalk
dust in their classrooms that got in clothes, eyes and up your nose. I think
you all have rose tinted specs on.
Never seen a large slate board, always wood with "blackboard paint"
> I don't recall any problem seeing the white on green. Like a highway
> sign.
>
> As an aside, I remember an office supply catalog. Chalk was far
> cheaper than markers. Also, notably, a black/greenboard was cheaper
> than a whiteboard.
>
> Our 20 y/o bldg was equipped with whiteboards, so they've been around
> quite a while. That's why I wonder if schools and colleges replaced
> their classic blackboards, or what they use in new buildings, even in
> public schools.
After being made redundant by HP some years ago, I trained to teach for a
while. In the school I worked in we mainly had white boards apart from in
one room where the guy had kept his "black board" which was actually of the
roller board type. When he left they simply removed the black "roller blind"
and replaced it with a which one, while the shoveled out all the accumulated
chalk dust and popped it in a skip out side.
One delightful device we did us a lot was a blue tooth tablet. You could
walk round the room with it and make notes on the board while watching what
the kids were writing...
I got pulled in during early days of what was then the "berkeley 10m"
telescope ... later they got funding from keck foundation and it was
renamed keck 10m ... there are now two
http://en.wikipedia.org/wiki/W._M._Keck_Observatory
recent posts
http://www.garlic.com/~lynn/2009m.html#82 ATMs by the Numbers
http://www.garlic.com/~lynn/2009m.html#85 ATMs by the Numbers
there was some prototyping and testing at Lick and got some
tours behind the scenes
http://mtham.ucolick.org/index.nonjs.html
they were planning on moving from film to CCDs ... justification being
that CCD was 30-60 times more sensitive to photons than film. The
downside was that CCD were not (yet) very big ... at the time, they
were testing with 200x200 or 40,000 cell and could be variable from
moment to moment. Procedure was to take a "all white reference" reading
for 30 seconds prior to taking actual image ... to calibrate each cell
reading at that particular moment. At the time there were rumors that
there might be a 2k-x-3k in existance (6mpixel) somewhere in the motion
picture industry (mininum needing for equaling 35mm film)
there seemed to be all sorts of politics with funding ... there were
statements that they could have gotten NSF funding for the whole thing
... but if they took NSF funding ... then they would loose control of
the schedule for observing ... and NSF would dictate who/when/what use
of the observatory.
of course now, you can get 10-12mpixel cameras for a couple hundred
dollars.
--
40+yrs virtualization experience (since Jan68), online at home since Mar1970
> Give me marker pens any day. Don't any of you remember the layers of chalk
> dust in their classrooms that got in clothes, eyes and up your nose. I think
> you all have rose tinted specs on.
>
I certainly remember the fun you could have by banging two chalkboard
brushes together.
Michael
"Michael Black" <et...@ncf.ca> wrote in message
news:Pine.LNX.4.64.09...@darkstar.example.net...
We call them "rubbers" in the UK but they are really thick felt. Some of my
fellow Physics students popped one into an extractor fan and then persuaded
the teacher to turn it on......
> Michael
>
PC projectors have bulbs, nicht wahr? PC's die, nyet?
scott
Another schoolboy prank: The board rubber had an eyelet screwed into
one end so it could be hung on a hook at the side of the board.
Someone tied a long piece of elastic to the eyelet and anchored the
other end on the wall of the classroom. When teacher lifted the rubber
off the hook it disappeared into the corner of the room at great
speed...
Some of our lecture theatres spanned two floors, with "roller towell"
type blackboards about 14' high. Just a simple mechanics problem to
place half a dozen blackboard rubbers on the top roller, such that
normal rolling of the board brought them down.
Then there was the doctored stick of chalk, axial hole drilled from
the writing end, with a couple of matches, some magnesium dust and a
chalk plug in the hole...
Regards,
David P.
Software crashes, si.
--
/~\ cgi...@kltpzyxm.invalid (Charlie Gibbs)
\ / I'm really at ac.dekanfrus if you read it the right way.
X Top-posted messages will probably be ignored. See RFC1855.
/ \ HTML will DEFINITELY be ignored. Join the ASCII ribbon campaign!
And how you could rub two of them against each other and make them
look clean without having really done anything.
> In article <Pine.LNX.4.64.09...@darkstar.example.net>,
> et...@ncf.ca (Michael Black) writes:
>
>> On Fri, 16 Oct 2009, Dave Wade wrote:
>>
>>> Give me marker pens any day. Don't any of you remember the layers of
>>> chalk dust in their classrooms that got in clothes, eyes and up your
>>> nose. I think you all have rose tinted specs on.
>>
>> I certainly remember the fun you could have by banging two chalkboard
>> brushes together.
>
> And how you could rub two of them against each other and make them
> look clean without having really done anything.
>
That sounds familiar.
I seem to remember some of the kids putting bits of chalk in the brushes,
that were in sections of whatever the material was so something could be
embedded. The teacher goes to erase the board, and instead adds to the
chalking.
Michael
"Michael Black" <et...@ncf.ca> wrote in message
news:Pine.LNX.4.64.09...@darkstar.example.net...
But how many went to a school with ink wells and an "ink monitor" who went
round and filled them all up at lunch time!
> But how many went to a school with ink wells and an "ink monitor" who
> went round and filled them all up at lunch time!
Raises hand, my first pen was an Osmoroid followed fairly quickly
by one with a little pump lever on the side. The ink wells stopped being
used quite early on though and we had to use our own bottles of ink or the
new fangled cartridge pens.
--
Steve O'Hara-Smith | Directable Mirror Arrays
C:>WIN | A better way to focus the sun
The computer obeys and wins. | licences available see
You lose and Bill collects. | http://www.sohara.org/
On the contrary, if you run a decent system.
PC hardware is generally _very_ reliable, unless it is compromised by
external problems, like power, dust, sand, gross accelration etc.
They are also relatively easy to repair.
I have worked on and off on around 500 pc-servers in different projects,
and I am still involved in the management of most of them. I have seen
two failures during the last 10 years, both were power related. There
have, of course, been regular needs for spare parts like disks or
power supplies, but these are regularly exchanged during service
intervals.
Personal PCs are built with cheaper components, which fail from time
to time. But in mtbf they are still more reliable than cars. I have
had "car failures" four times the last decade, where a serviceman or
severeal hours of fixing was needed. I have had the same amount of
laptop problems. All of them were fixed after some spare parts were
applied. OK, I had to retire the laptop that was run over by a car.
It still worked, but had severe mechanical damage. I could hold
a few presentations from it, and do a disk archive of the
contents.
This may contrast with the normal world of consumer software.
I have a steady stream of old windows hardware going to good causes,
like niece getting a stellar linux box.
But I will not argue for the Penguins, or the demons. Keep runningt
the consumer software. It gives me a huge competitive advantage, like
running a taxi service with Audis and Volvos, where the competition
uses Ladas and Trabants at twice the cost.
-- mrr
I never got to be ink or milk monitor.
--
Nuns! Reverse!
> On Sat, 17 Oct 2009 08:25:07 +0100
> "Dave Wade" <g8...@yahoo.com> wrote:
>
>> But how many went to a school with ink wells and an "ink monitor" who
>> went round and filled them all up at lunch time!
>
> Raises hand, my first pen was an Osmoroid followed fairly quickly
> by one with a little pump lever on the side. The ink wells stopped being
> used quite early on though and we had to use our own bottles of ink or
> the
> new fangled cartridge pens.
>
It had quite a bad time, being left-handed, until Mr Biro changed my life.
--
Nuns! Reverse!
Rubbers?!! Never heard that one. Goody. A new word.
/BAH
I had ink wells but we used them for our corn kernels. We weren't
allowed to use pens until third or fourth grade.
/BAH
Yes because they "rub out" the chalk marks...
>
> /BAH
the blackboard erasers were dry ... and chalk dust accumulated both on
them and the blackboard. after school job would include banging erasers
together to liberate all the chalk dust as well as going over the
blackboard with damp cloth ... attempting to remove the residual dust.
search for cleaning erasers turns up
http://ezinearticles.com/?Chalkboard-Erasers&id=354528
the above mentions construction of erasers with strips of felt bound on
one side (which would make it possible to insert objects between the
strips).
another URL turned up by search engine
http://www.ehow.com/how_4580071_easiest-way-clean-black-chalkboards.html
Got an OsmiroiD 65 here, as well as a few Parkers, the latter
converts from cartridge to real ink, Quink Royal Blue, in my case.
I'm old enough to remember the old wooden handled, steel nibbed dip pens
and making up the ink (black) from powder, another ink-monitor's job.
I dont know if I'm all _that_ old or our schools were just careful with
money :-)
--
Cheers,
Stan Barr plan.b .at. dsl .dot. pipex .dot. com
The future was never like this!
> But how many went to a school with ink wells and an "ink monitor" who
> went round and filled them all up at lunch time!
We didn't actually have the wells, but we had the hole in the desk
where they went. We would build spiral ramps under the lid with
books, so that when a marble was dropped into the inkwell hole it went
round and round. I think we were convinced that the teacher did not
know what we were doing, but in retrospect I suppose that having six
grades of students in the one room just kept her preoccupied enough so
that she didn't care, so long as it didn't involve bloodshed.
The next year they threw up some prefab houses for classrooms and
there were 5 more teachers. And new desks that did not have inkwell
holes.
Dave
> "jmfbahciv" <jmfbahciv@aol> wrote in message
> news:hbcf2...@news7.newsguy.com...
> > Rubbers?!! Never heard that one. Goody. A new word.
>
> Yes because they "rub out" the chalk marks...
The Brits also use "rubber" to describe pencil erasers, do they not?
--
John Varela
Trade NEWlamps for OLDlamps for email
> But how many went to a school with ink wells and an "ink monitor" who went
> round and filled them all up at lunch time!
You must really be old. I entered first grade in 1941, when the
desks had holes to accept ink wells but already there were no ink
wells. My mother explained to me what the holes were for.
>On Sat, 17 Oct 2009 07:25:07 UTC, "Dave Wade" <g8...@yahoo.com>
>wrote:
>
>> But how many went to a school with ink wells and an "ink monitor" who went
>> round and filled them all up at lunch time!
>
>You must really be old. I entered first grade in 1941, when the
>desks had holes to accept ink wells but already there were no ink
>wells. My mother explained to me what the holes were for.
I started school in the mid 50s. Somewhere along the way, I remember
the desks with the ink well holes.
Always on the right side. Must have been a pain for left handed kids.
--
ArarghMail910 at [drop the 'http://www.' from ->] http://www.arargh.com
BCET Basic Compiler Page: http://www.arargh.com/basic/index.html
To reply by email, remove the extra stuff from the reply address.
Ladislas Biro ???
http://www.ideafinder.com/history/inventions/ballpen.htm
--
+----------------------------------------+
| Charles and Francis Richmond |
| |
| plano dot net at aquaporin4 dot com |
+----------------------------------------+
Yup. There are electrons and holes. The holes flow one way; the
electrons flow the other way:
http://ecee.colorado.edu/~bart/book/eband4.htm
Can you say "pariah"??? Sure... sure you can!!!
This is just one of many ways that left-handed people were made to
feel inferior. I remember large college classrooms with about 100
desks bolted to the floor. Out of the 100 desks, three of those
desks were for left-handed people. Since lefties represent 11% of
the population (and are probably *over* represented in college),
that was *far* too few left-handed desks.
Stick that in your "anti-clockwise" and turn it!!! ;-)
Then why are they *not* called "rub-outs"???
My mother told me the ink wells were still in use in Texas in the
1940s. I saw them in some desks in the 1950s. No ink in them when I
went to school. No left hand desks. My first grade teacher told my
mother that my left-handedness could be corrected. My mother told her
to not do that, the teacher would get sued.
JimP.
--
Brushing aside the thorns so I can see the stars.
http://www.linuxgazette.net/ Linux Gazette
http://www.drivein-jim.net/ Drive-In movie theaters
http://poetry.drivein-jim.net/ Aug 26, 2009
> of course now, you can get 10-12mpixel cameras for a couple hundred
> dollars.
A camera's quality is more than merely the megapixel count; there are
other factors as well.
I don't know what PC projectors use as a light source. But the big
lamps in the old slide projectors and overhead projectors used to burn
out fairly often. A very basic in presentations was to keep a spare
bulb on hand.
>PC's die, nyet?
It seemed years ago the PCs used for projection were not that reliable
and frequently screwed up in some way. But I think they got the bugs
out.
> But how many went to a school with ink wells and an "ink monitor" who went
> round and filled them all up at lunch time!
I got interested in using fountain pens about 10 years ago. They work
great on fax and copied documents, they reproduce far better than a
ball point pen.
However, older colleagues steered well clear of me when I used one;
they had their share of horror stories from using them in school as
mentioned above. They couldn't stand those inkwells.
I must admit drawing ink out of the bottle got to be a nuisance and I
switched to cartridges*. But they went through quickly and were more
expensive. *(I saw a 1956 ad for cartridges, so I guess they've been
around for a while.)
I got my ink at a 100 y/o family stationer. Sadly, they closed. The
kid at the big box stores had no idea of what I was talking about.
I don't fax very often anymore so I stick with ballpoints.
> the blackboard erasers were dry ... and chalk dust accumulated both on
> them and the blackboard. after school job would include banging erasers
> together to liberate all the chalk dust as well as going over the
> blackboard with damp cloth ... attempting to remove the residual dust.
Speaking of TV, the sci fi show "Roswell", reference the "eraser room"
in the high school where apparently the dust was sucked out of erasers
by special fans (presumably filtered). I don't know if such rooms
really exist. In the TV show, the room was used for the sharing of
affection.
> The next year they threw up some prefab houses for classrooms and
> there were 5 more teachers. And new desks that did not have inkwell
> holes.
One year I had class in the pre-fab annex building. It had a
reputation for being cold in the winter, but it was not. It was,
however, much warmer in the spring and fall than the main building.
The classrooms had incandescent lights even though the main building
was florescent. The lamps had a silver bottom so the light was all
indirect. I only saw those type in one other place. One day the roof
leaked and water touch the bulb and it exploded.
> I started school in the mid 50s. Somewhere along the way, I remember
> the desks with the ink well holes.
>
> Always on the right side. Must have been a pain for left handed kids.
Our inkwells were in the center. In 4th grade we were allowed to use
pens and used ballpoints. However, people only a few years older than
me use ink as described. I guess some schools stuck with it longer.
In looking over various old documents from the 1960s, most were
written in ballpoint, but a few were from fountain pens.
As mentioned, most people were more than happy to get rid of them when
ballpoints came out.
When we were in sixth grade, somebody discovered cheap fountain pens
with cartridges at the 5&10, and it became a fad in our class. I
think they were Schaeffer. They were made for many years, they may
still be made. I used those when I got into them, then I treated
myself to an expensive Waterman (which broke).
re:
http://www.garlic.com/~lynn/2009o.html#55 TV Big Bank 10/12/09
it wasn't comment about (relative) small variation in camera costs ...
but influence of consumer electronics has brought down what was possibly
large tens (hundred?) of thousands for a 2Kx3K (6mpixel) CCD to much
more affordable levels (at the time, rumor existed 2Kx3K one-of-a-kind
existed somewhere in motion picture industry, vis-avis the 200x200
.. 40k pixel that was used in some of the testing at Lick that took 30
seconds calibration with white board before each image).
this references Keck using 2Kx2K (4mpixel) CCD
http://www.fairchildimaging.com/gallery/
this talks about upgrade from 2Kx2K 4mpixel) to 3-CCD 2Kx4K (8mpixle)
http://www.ucolick.org/~kibrick/
above also mentions remote observing from UCSC campus ... which was
basically what I had originally been brought in to look at.
some Keck CCD upgrade also mentioned here
http://adsabs.harvard.edu/abs/2004SPIE.5492....1M
now this (from 10Apr09)
http://www.projectmechatronics.com/tag/astronomer/
mentions Keck II now has 67mpixel CCD ... question is whether it
actually is one large CCD ... or a composite of several smaller CCDs.
all of these (CCD) cameras are under $10K
http://www.sbig.com/sbwhtmls/large_format_cameras.htm
this describes Kodak large CCDs need sophisticated cooling &
electronics.
http://www.atik-cameras.com/html/atik_11000.html
now from 6oct09 ... 3.2gigapixels CCD camera being designed & built at SLAC
http://www.symmetrymagazine.org/breaking/2009/10/06/the-largest-ever-ccd-digital-cameras-will-explore-the-universe/
for computer trivia ... I use to have monthly user group meetings at
SLAC.
from above article:
Making large CCDs for astronomical purposes present all kinds of
challenges beyond what you need to do for a home digital camera. For a
start, any digital camera suffers from electronic noise, where extra
electrons pop up and remain as extra charge on the camera surface, as if
from a phantom photon. You'll see some digital cameras advertising their
low-noise sensors, talking about this very problem. The issue is much
more acute for LSST as the telescope will only be collecting small
numbers of photons from many faint sources, so just a few stray
electrons can ruin the image. Heat is enough to eject some unwanted
electrons so the whole LSST camera needs to be cooled to liquid nitrogen
temperatures to reduce noise.
... snip ...
Widdershins?
--
/~\ cgi...@kltpzyxm.invalid (Charlie Gibbs)
\ / I'm really at ac.dekanfrus if you read it the right way.
X Top-posted messages will probably be ignored. See RFC1855.
/ \ HTML will DEFINITELY be ignored. Join the ASCII ribbon campaign!
> Dave Wade wrote:
>
>> "jmfbahciv" <jmfbahciv@aol> wrote in message
>> news:hbcf2...@news7.newsguy.com...
>>
>>> Dave Wade wrote:
>>>>
>>>> "Michael Black" <et...@ncf.ca> wrote in message
>>>> news:Pine.LNX.4.64.09...@darkstar.example.net...
>>>>
>>>>> On Fri, 16 Oct 2009, Dave Wade wrote:
>>>>>
>>>>>> Give me marker pens any day. Don't any of you remember the
>>>>>> layers of chalk dust in their classrooms that got in clothes,
>>>>>> eyes and up your nose. I think you all have rose tinted specs
>>>>>> on.
>>>>>
>>>>> I certainly remember the fun you could have by banging two
>>>>> chalkboard brushes together.
>>>>
>>>> We call them "rubbers" in the UK but they are really thick felt.
>>>> Some of my fellow Physics students popped one into an extractor
>>>> fan and then persuaded the teacher to turn it on......
>>>
>>> Rubbers?!! Never heard that one. Goody. A new word.
We just called them "erasers". "Rubbers" were rubber boots.
At least until puberty.
>> Yes because they "rub out" the chalk marks...
>
> Then why are they *not* called "rub-outs"???
Some systems confused them with backspaces.
about decade ago, we got brought in to start lookingat issues around
digital cinema (& digital projectors) ... eliminating film for movie
theaters ... there is huge hazardess chemical problem ... heat of bulb
on film resulting in significant contaminants in the air (meeting health
standards is expense ... cost of digital projectors is partially offset
by eliminating stuff envolved in managing the fumes from film
projection). Issue was about using change to look at whole end-to-end
provisioning & infrastructure related to movie theaters
... distribution, theaters, revenue collection at theaters and
electronic audits of audience size, theater remittance back to
distributors ... some other issues (including looking at encryption
techniques as countermeasure to priracy).
most of the people were related to studios. one issue raised was could
additional electronics environment also be used to do nearly real-time
management of ticket proceeds ... remittance to studios which was taking
up to 180 days. improving the count accuracy (shaving the counts is
apparently common) and getting remittance under 30 days ... was viewed
as significant opportunity.
That particular effort was TI's DLP chip ... some discussion here:
http://www.smartcomputing.com/Editorial/article.asp?article=articles/archive/l0808/44l08/44l08.asp&guid=
wiki page:
http://en.wikipedia.org/wiki/Digital_Light_Processing
above mentions next generation of technology being for used in micro
projectors.
digital cinema wiki (finally deploying in 2005).
http://en.wikipedia.org/wiki/Digital_cinema
above talks about many of the issues.
>> But how many went to a school with ink wells and an "ink monitor" who
>> went round and filled them all up at lunch time!
>
> Dave Wade wrote:
> [snip]
> I had ink wells but we used them for our corn kernels. We weren't
> allowed to use pens until third or fourth grade.
1949, Northwood Narrows, NH, Brookside School, 3rd grade: Allowed to
have ink wells in the provided holes in the desks, allowed to have
ink in them, issued steel dip pens and taught to write with them.
The next year, 25 cent ballpoints replaced steel nibs for all who
could afford them -- maybe 80% or 90% of the class.
In that same class room, we had hectographed handouts and story time was
78 RPM records played on a mechanical phonograph. Wood heat but there
*was* indoor plumbing.
YADATROT: I saw my first computer (at Harvard) only 5 years later.
--
Mike Spencer Nova Scotia, Canada
> On Oct 17, 3:25=A0am, "Dave Wade" <g8...@yahoo.com> wrote:
>
> > But how many went to a school with ink wells and an "ink monitor" who wen=
> t
> > round and filled them all up at lunch time!
>
> I got interested in using fountain pens about 10 years ago. They work
> great on fax and copied documents, they reproduce far better than a
> ball point pen.
>
> However, older colleagues steered well clear of me when I used one;
> they had their share of horror stories from using them in school as
> mentioned above. They couldn't stand those inkwells.
>
> I must admit drawing ink out of the bottle got to be a nuisance and I
> switched to cartridges*. But they went through quickly and were more
> expensive. *(I saw a 1956 ad for cartridges, so I guess they've been
> around for a while.)
>
> I got my ink at a 100 y/o family stationer. Sadly, they closed. The
> kid at the big box stores had no idea of what I was talking about.
An art supply store would be a good bet. At least they should have
heard of them.
-- Patrick
> On Sat, 17 Oct 2009 17:49:33 UTC, "Dave Wade" <g8...@yahoo.com>
> wrote:
>
> > "jmfbahciv" <jmfbahciv@aol> wrote in message
> > news:hbcf2...@news7.newsguy.com...
>
> > > Rubbers?!! Never heard that one. Goody. A new word.
> >
> > Yes because they "rub out" the chalk marks...
>
> The Brits also use "rubber" to describe pencil erasers, do they not?
Yes we do.
--
Steve O'Hara-Smith | Directable Mirror Arrays
C:>WIN | A better way to focus the sun
The computer obeys and wins. | licences available see
You lose and Bill collects. | http://www.sohara.org/
> Better hurry on Kodachrome. The lab is closing.
Dwayne's says it's planning to continue processing Kodachrome until
December 2010, so no big hurry.
--
Don't bother with piddly crap like "gun control".
Life is 100% fatal. Ban it.
> John Varela wrote:
>> On Sat, 17 Oct 2009 07:25:07 UTC, "Dave Wade" <g8...@yahoo.com>
>> wrote:
>>
>>> But how many went to a school with ink wells and an "ink monitor"
>>> who went round and filled them all up at lunch time!
>> You must really be old. I entered first grade in 1941, when the
>> desks had holes to accept ink wells but already there were no ink
>> wells. My mother explained to me what the holes were for.
>>
>
> Yup. There are electrons and holes. The holes flow one way; the
> electrons flow the other way:
But since we only have electrons every couple years, you can imagine
what happens to the holes!
> Dave Wade wrote:
>> "jmfbahciv" <jmfbahciv@aol> wrote in message
>> news:hbcf2...@news7.newsguy.com...
>>> Dave Wade wrote:
>>>>
>>>>
>>>> "Michael Black" <et...@ncf.ca> wrote in message
>>>> news:Pine.LNX.4.64.09...@darkstar.example.net...
>>>>> On Fri, 16 Oct 2009, Dave Wade wrote:
>>>>>
>>>>>
>>>>>> Give me marker pens any day. Don't any of you remember the
>>>>>> layers of chalk dust in their classrooms that got in clothes,
>>>>>> eyes and up your nose. I think you all have rose tinted specs
>>>>>> on.
>>>>> I certainly remember the fun you could have by banging two
>>>>> chalkboard brushes together.
>>>>>
>>>>
>>>> We call them "rubbers" in the UK but they are really thick
>>>> felt. Some of my fellow Physics students popped one into an
>>>> extractor fan and then persuaded the teacher to turn it on......
>>>
>>> Rubbers?!! Never heard that one. Goody. A new word.
>>
>> Yes because they "rub out" the chalk marks...
>>
>
> Then why are they *not* called "rub-outs"???
Because then they couldn't use the same word for condoms. That's glory
for you.
the meetings were in '98 held at the ritz carlton in marina del rey ...
I chose the location partly because I could walk over to ISI and talk to
the RFC editor.
one meeting, i also gave a talk at ISI on why Internet wasn't business
critical dataprocessing. I thot it was going to be just ISI ... but
something like 50-60 graduate students from USC show up.
some amount of the talk was about the compensating procedures that we
had to do for the "payment gateway" (part of what is now comingly called
electronic commerce) ... it wasn't just taking message formats from a
physical circuit-based environment and dropping it into the anarchy of
the Internet packet-based environment ... misc. past posts mentioning
payment gateway
http://www.garlic.com/~lynn/subnetwork.html#gateway
rfc editor home page:
http://www.rfc-editor.org/
isi home page:
http://www.isi.edu
ritz-carlton
http://www3.isi.edu/about-accommodations_marina_del_rey.htm
> In article <hbdfqg$5th$5...@news.eternal-september.org>, fri...@tx.rr.com
> (Charles Richmond) writes:
>
>> Dave Wade wrote:
>>
>>> "jmfbahciv" <jmfbahciv@aol> wrote in message
>>> news:hbcf2...@news7.newsguy.com...
>>>
>>>> Dave Wade wrote:
>>>>>
>>>>> "Michael Black" <et...@ncf.ca> wrote in message
>>>>> news:Pine.LNX.4.64.09...@darkstar.example.net...
>>>>>
>>>>>> On Fri, 16 Oct 2009, Dave Wade wrote:
>>>>>>
>>>>>>> Give me marker pens any day. Don't any of you remember the
>>>>>>> layers of chalk dust in their classrooms that got in clothes,
>>>>>>> eyes and up your nose. I think you all have rose tinted specs
>>>>>>> on.
>>>>>>
>>>>>> I certainly remember the fun you could have by banging two
>>>>>> chalkboard brushes together.
>>>>>
>>>>> We call them "rubbers" in the UK but they are really thick felt.
>>>>> Some of my fellow Physics students popped one into an extractor
>>>>> fan and then persuaded the teacher to turn it on......
>>>>
>>>> Rubbers?!! Never heard that one. Goody. A new word.
>
> We just called them "erasers". "Rubbers" were rubber boots.
Ah you didn't have a famous boot-wearing General - Earl of Sandwich (olde
joak [1])
> At least until puberty.
>
>>> Yes because they "rub out" the chalk marks...
>>
>> Then why are they *not* called "rub-outs"???
>
> Some systems confused them with backspaces.
Apparently in Australia there is (was?) a brand of "sticky-backed plastic"
[2]
called Durex (this is a brand of prophylactic in the UK).
[1] Duke of Wellington, so we call them "Wellies".
[2] from Blue Peter[3] - a BBC children's TV programme, so not allowed to
mention brand names, such as Sellotape, or their rivals, Scotch tape -
actually sticky backed cellophane).
[3] - I bet this could be seen as a bad euphemism, but it refers to a
ship's signal).
--
Nuns! Reverse!
>
>
>"Michael Black" <et...@ncf.ca> wrote in message
>news:Pine.LNX.4.64.09...@darkstar.example.net...
>> On Fri, 16 Oct 2009, Charlie Gibbs wrote:
>>
>>> In article <Pine.LNX.4.64.09...@darkstar.example.net>,
>>> et...@ncf.ca (Michael Black) writes:
>>>
>>>> On Fri, 16 Oct 2009, Dave Wade wrote:
>>>>
>>>>> Give me marker pens any day. Don't any of you remember the layers of
>>>>> chalk dust in their classrooms that got in clothes, eyes and up your
>>>>> nose. I think you all have rose tinted specs on.
>>>>
>>>> I certainly remember the fun you could have by banging two chalkboard
>>>> brushes together.
>>>
>>> And how you could rub two of them against each other and make them
>>> look clean without having really done anything.
>>>
>> That sounds familiar.
>>
>> I seem to remember some of the kids putting bits of chalk in the brushes,
>> that were in sections of whatever the material was so something could be
>> embedded. The teacher goes to erase the board, and instead adds to the
>> chalking.
>>
>> Michael
>>
>
>But how many went to a school with ink wells and an "ink monitor" who went
>round and filled them all up at lunch time!
They did when I started, but sometime before I left the inkwells were
replaced by a bottle of ink kept in teacher's desk where fountain pens
could be filled "free at the point of delivery", as our politicians
like to say. Ballpoints were still banned when I left school.
--
Pete
>ArarghMai...@NOT.AT.Arargh.com wrote:
>> On 17 Oct 2009 20:59:44 GMT, "John Varela" <OLDl...@verizon.net>
>> wrote:
>>
>>> On Sat, 17 Oct 2009 07:25:07 UTC, "Dave Wade" <g8...@yahoo.com>
>>> wrote:
>>>
>>>> But how many went to a school with ink wells and an "ink monitor" who went
>>>> round and filled them all up at lunch time!
>>> You must really be old. I entered first grade in 1941, when the
>>> desks had holes to accept ink wells but already there were no ink
>>> wells. My mother explained to me what the holes were for.
>>
>> I started school in the mid 50s. Somewhere along the way, I remember
>> the desks with the ink well holes.
>>
>> Always on the right side. Must have been a pain for left handed kids.
>
>Can you say "pariah"??? Sure... sure you can!!!
>
>This is just one of many ways that left-handed people were made to
>feel inferior. I remember large college classrooms with about 100
>desks bolted to the floor. Out of the 100 desks, three of those
>desks were for left-handed people. Since lefties represent 11% of
>the population (and are probably *over* represented in college),
>that was *far* too few left-handed desks.
I remember an item on an antiques programme on tv some years ago,
described by the resident expert as a "Victorian instrument of
torture". It was a spoon with a right-angled bend in it such that it
was pretty much impossible to use left-handed. I guess left-handedness
was discouraged in Victorian England.
--
Pete
Rubbers weren't boots. They just covered the shoe and wouldn't
work in snow.
> At least until puberty.
>
>>> Yes because they "rub out" the chalk marks...
>> Then why are they *not* called "rub-outs"???
>
> Some systems confused them with backspaces.
>
And both are gone; now I only have a delete key.
/BAH
/BAH
/BAH
Ours were in the center.
/BAH
/BAH
> On Sat, 17 Oct 2009 07:25:07 UTC, "Dave Wade" <g8...@yahoo.com>
> wrote:
>
>> But how many went to a school with ink wells and an "ink monitor" who went
>> round and filled them all up at lunch time!
>
> You must really be old. I entered first grade in 1941, when the
> desks had holes to accept ink wells but already there were no ink
> wells. My mother explained to me what the holes were for.
>
And yet, when I was in high school in the seventies, the desks still
had holes in them. In elementary school, no, but they had newer desks
where the desk and the seat where all one unit, a metal frame holding
it all together. But in high school, the desks were separate from the
chairs.
I think they just kept making them with the hole. The desks never looked
particularly old, beatup at times but not old.
And until this discussion, I always thought of the hole as the "ink well".
I have no idea why I knew the hole was for ink, but never having seen them
in operation, and without giving it thought, I thought the hole was the
ink well, where you put your bottle of ink.
Of course, there was a hole series of cartoons about an ink well or a pen,
I can't remember what.
Michael
> ArarghMai...@NOT.AT.Arargh.com wrote:
>> On 17 Oct 2009 20:59:44 GMT, "John Varela" <OLDl...@verizon.net>
>> wrote:
>>
>>> On Sat, 17 Oct 2009 07:25:07 UTC, "Dave Wade" <g8...@yahoo.com> wrote:
>>>
>>>> But how many went to a school with ink wells and an "ink monitor" who
>>>> went round and filled them all up at lunch time!
>>> You must really be old. I entered first grade in 1941, when the desks had
>>> holes to accept ink wells but already there were no ink wells. My mother
>>> explained to me what the holes were for.
>>
>> I started school in the mid 50s. Somewhere along the way, I remember
>> the desks with the ink well holes.
>> Always on the right side. Must have been a pain for left handed kids.
>
> Can you say "pariah"??? Sure... sure you can!!!
>
Don't you mean "sinister"?
I apparently could have been left handed, but something about how it could
go either way so I'm right handed. I'm not sure if there was some testing
method to put a scale on it and I was more to the right than to the left,
or if it's just a story to cover up going right-handed.
But there were kids who were left-handed at school, and nobody stoned them
or refused to talk to them, or even blamed them for the evils of the
world, which is what "pariah" suggests.
Michael
> This is just one of many ways that left-handed people were made to feel
> inferior. I remember large college classrooms with about 100 desks bolted to
> the floor. Out of the 100 desks, three of those desks were for left-handed
> people. Since lefties represent 11% of the population (and are probably
> *over* represented in college), that was *far* too few left-handed desks.
>
> --
> +----------------------------------------+
> | Charles and Francis Richmond |
> | |
> | plano dot net at aquaporin4 dot com |
> +----------------------------------------+
>
"They had to count them all. Now they know how many holes it takes
to fill the Albert Hall."
Actually, I know what happens to the holes after an electron:
they show up in my bank account.
No, I've only just officially retired. I remember ink-wells from
around 1950. Knowing our local school board they had hunderweights* of
ink powder left from before the war and were too mean to throw it out!
* Hundredweight: 112 pounds, or about 50 kilos.
--
Cheers,
Stan Barr plan.b .at. dsl .dot. pipex .dot. com
The future was never like this!
Where the rubber meets the road?
> In article <govfd597neo4mhnq2...@4ax.com>,
> William Hamblen <william...@earthlink.net> wrote:
>
> > Better hurry on Kodachrome. The lab is closing.
>
> Dwayne's says it's planning to continue processing Kodachrome until
> December 2010, so no big hurry.
Yes, you have over a year to get it exposed and processed, but the
film is getting to be hard to find. It's out of stock at every store
I can think of, and it seems to be selling for $15-$30 a roll on
e-bay.
-- Patrick
...which is made out of eraser rubber.
--
John Varela
Trade NEWlamps for OLDlamps for email
I believe the desks and chairs were bolted to the floor.
The Mellons restored a school, etc, to the way it would have been
when the first of them went to the US, Havn't been, its in Tyrone,
but everyone of my vintage who has, has brought back picture of what
you describe.
--
Greymaus....
Irritating messsage suggestions?
> Of course, there was a hole series of cartoons about an ink well or a pen,
> I can't remember what.
You're joking about "Out of the Inkwell", no? Betty Boop, will get you
for that.
--
A computer without Microsoft is like a chocolate cake without mustard.
[snip]
>Actually, I know what happens to the holes after an electron:
^^^^^^^^
>they show up in my bank account.
Charlie, you misspelled "election", but remember: it is for The
Economy.
Sincerely,
Gene Wirchenko
[snip]
>And yet, when I was in high school in the seventies, the desks still
>had holes in them. In elementary school, no, but they had newer desks
>where the desk and the seat where all one unit, a metal frame holding
>it all together. But in high school, the desks were separate from the
>chairs.
When I was in elementary school in the late '60's, the desks did
have the holes. Interestingly, the containers of paste that we used,
when turned upside-down, fit the holes exactly.
>I think they just kept making them with the hole. The desks never looked
>particularly old, beatup at times but not old.
I agree. Who would know what the hole was for?
>And until this discussion, I always thought of the hole as the "ink well".
Until this discussion, I always thought of the hole as being for
paste bottles. I thought it odd, but I did not go past that.
[snip]
Sincerely,
Gene Wirchenko
> Yes, you have over a year to get it exposed and processed, but the
> film is getting to be hard to find. It's out of stock at every store
> I can think of, and it seems to be selling for $15-$30 a roll on
> e-bay.
To be expected. There's no further supply unless someone other than
Kodak makes more. What does that do to supply and demand, for the few
people still demanding it? :-d
/BAH
/BAH
> In article <w9zoco4...@zipcon.net>,
> Patrick Scheible <k...@zipcon.net> wrote:
>
> > Yes, you have over a year to get it exposed and processed, but the
> > film is getting to be hard to find. It's out of stock at every store
> > I can think of, and it seems to be selling for $15-$30 a roll on
> > e-bay.
>
> To be expected. There's no further supply unless someone other than
> Kodak makes more. What does that do to supply and demand, for the few
> people still demanding it? :-d
Of course, but the previous poster might not have been aware of where
in that process the supply and demand curve is. At one point, Kodak
was saying they would have enough from the last master roll to supply
stores up to the end of 2009. That turned out not to be the case;
Kodak underestimated the number of people who wanted to shoot a last
few rolls.
-- Patrick
I had a desk like that in my first job (1975) except the desk also had a
hole where the gas lights had been, and a electrical (i.e. motorized pin
wheel not electronic) calculator. Actually when we started installing
terminals the joiners came in and took up the covers from over the
underfloor trunking (all parquet flooring like this ->
http://www.freepedia.co.uk/DIRHomesParquetFlooring.php) and the electrician
then came in and threaded the cable through the redundant gas pipes. Once it
was all done the joiner re-laid the floor, and the painters came in and
re-varnished it....
> We would build spiral ramps under the lid with
> books, so that when a marble was dropped into the inkwell hole it went
> round and round. I think we were convinced that the teacher did not
> know what we were doing, but in retrospect I suppose that having six
> grades of students in the one room just kept her preoccupied enough so
> that she didn't care, so long as it didn't involve bloodshed.
>
> The next year they threw up some prefab houses for classrooms and
> there were 5 more teachers. And new desks that did not have inkwell
> holes.
>
> Dave
"John Varela" <OLDl...@verizon.net> wrote in message
news:dxizd0mOwXzR-pnq-8oW6OrYUPcbD@localhost...
> On Sat, 17 Oct 2009 07:25:07 UTC, "Dave Wade" <g8...@yahoo.com>
> wrote:
>
>> But how many went to a school with ink wells and an "ink monitor" who
>> went
>> round and filled them all up at lunch time!
>
> You must really be old. I entered first grade in 1941, when the
> desks had holes to accept ink wells but already there were no ink
> wells. My mother explained to me what the holes were for.
I think not, this was 1963/4 in rural England.
> On Oct 17, 3:07 pm, Dave Garland <dave.garl...@wizinfo.com> wrote:
>
>> The next year they threw up some prefab houses for classrooms and there
>> were 5 more teachers. And new desks that did not have inkwell holes.
>
> One year I had class in the pre-fab annex building. It had a reputation
> for being cold in the winter, but it was not. It was, however, much
> warmer in the spring and fall than the main building.
>
> The classrooms had incandescent lights even though the main building was
> florescent. The lamps had a silver bottom so the light was all
> indirect. I only saw those type in one other place.
We had those in my elementary school. Big bulbs, one to a chandelier.
About four per classroom. Building constructed in the 1920s or 30s, I
think, though the lighting fixtures might have been significantly newer.
Say, it looks like that sort (or a similar sort) of bulb is still readily
available:
http://www.lightbulbsdirect.com/page/001/CTGY/IncanSilver
--
Roland Hutchinson
He calls himself "the Garden State's leading violist da gamba,"
... comparable to being ruler of an exceptionally small duchy.
--Newark (NJ) Star Ledger ( http://tinyurl.com/RolandIsNJ )
Ah good I'm not the only one that saw this in 1960s England.
--
Steve O'Hara-Smith | Directable Mirror Arrays
C:>WIN | A better way to focus the sun
The computer obeys and wins. | licences available see
You lose and Bill collects. | http://www.sohara.org/
We had inkwells, with the working lid. Desks bolted to the floor.
Of course no bottles in the hole put we had the solid brass lid
to play with. 1951-1956 PS 68 the Bronx.
Sometime in that period we moved from pencil to pen.
Back then ballpoints would leave ink smudges.
If you were really good you could produce a better result
with a fountain pen.
One little bastard would take his composition book home
and copy it into a new one. The slightest mistake and
he'd copy it again.
> On Sat, 17 Oct 2009 18:08:48 -0700, hancock4 wrote:
>
>> On Oct 17, 3:07 pm, Dave Garland <dave.garl...@wizinfo.com>
>> wrote:
>>
>>> The next year they threw up some prefab houses for classrooms
>>> and there were 5 more teachers. And new desks that did not
>>> have inkwell holes.
>>
>> One year I had class in the pre-fab annex building. It had a
>> reputation for being cold in the winter, but it was not. It was,
>> however, much warmer in the spring and fall than the main
>> building.
>>
>> The classrooms had incandescent lights even though the main
>> building was florescent. The lamps had a silver bottom so the
>> light was all indirect. I only saw those type in one other
>> place.
>
> We had those in my elementary school. Big bulbs, one to a
> chandelier. About four per classroom. Building constructed in
> the 1920s or 30s, I think, though the lighting fixtures might have
> been significantly newer.
>
> Say, it looks like that sort (or a similar sort) of bulb is still
> readily available:
>
> http://www.lightbulbsdirect.com/page/001/CTGY/IncanSilver
>
I spent a lot of time in the late 1960s replacing hundreds of these
things with rows and rows of four-foot egg-crate fluorescent
fixtures.
--
Paul