Science > Physics > for education, is there a machine like overhead projector for photographs ???
| Topic: |
Science > Physics |
| User: |
"a_plutonium" |
| Date: |
22 Mar 2007 11:47:15 PM |
| Object: |
for education, is there a machine like overhead projector for photographs ??? |
I have found out that the very best way to go into a classroom and
teach something is by carrying
a stack of photograph pictures about the subject and one by one
overhead project them to a large screen
and talk about each photograph.
Trouble is, I do not know if anyone has engineered such a machine.
I have a series of photographs that I want to form into a lecture, but
is there a machine for which I can
slide each picture into the machine and it projects it onto the
screen?
I am guessing there is none. There is a slide projector, but I want a
photograph projector. I suppose I
can take my series of photographs and turn them into slides.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
.
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| User: "Barb Knox" |
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| Title: Re: for education, is there a machine like overhead projector for photographs ??? |
23 Mar 2007 12:27:41 AM |
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In article <1174625235.159901.231860@y80g2000hsf.googlegroups.com>,
"a_plutonium" <a_plutonium@hotmail.com> wrote:
I have found out that the very best way to go into a classroom and
teach something is by carrying
a stack of photograph pictures about the subject and one by one
overhead project them to a large screen
and talk about each photograph.
Trouble is, I do not know if anyone has engineered such a machine.
I have a series of photographs that I want to form into a lecture, but
is there a machine for which I can
slide each picture into the machine and it projects it onto the
screen?
I am guessing there is none.
Bad guess. See <http://en.wikipedia.org/wiki/Opaque_projector>.
I'm curious: what will you be lecturing on, and how did you convince the
school to let you do it?
There is a slide projector, but I want a
photograph projector. I suppose I
can take my series of photographs and turn them into slides.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
--
---------------------------
| BBB b \ Barbara at LivingHistory stop co stop uk
| B B aa rrr b |
| BBB a a r bbb | Quidquid latine dictum sit,
| B B a a r b b | altum viditur.
| BBB aa a r bbb |
-----------------------------
.
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| User: "a_plutonium" |
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| Title: Re: for education, is there a machine like overhead projector for photographs ??? |
23 Mar 2007 12:56:02 AM |
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Barb Knox wrote:
In article <1174625235.159901.231860@y80g2000hsf.googlegroups.com>,
"a_plutonium" <a_plutonium@hotmail.com> wrote:
I have found out that the very best way to go into a classroom and
teach something is by carrying
a stack of photograph pictures about the subject and one by one
overhead project them to a large screen
and talk about each photograph.
Trouble is, I do not know if anyone has engineered such a machine.
I have a series of photographs that I want to form into a lecture, but
is there a machine for which I can
slide each picture into the machine and it projects it onto the
screen?
I am guessing there is none.
Bad guess. See <http://en.wikipedia.org/wiki/Opaque_projector>.
I'm curious: what will you be lecturing on, and how did you convince the
school to let you do it?
You should not be so negative and closed minded about other people.
And if you
have a low opinion of someone, you should not converse with them.
Judging from
her replies to me on the Internet, if Barb is in education, it is my
opinion she needs
some remedial training in how to interact with others, instead of
being closed minded
and rough closed minded.
I looked up opaque-projector---
--- quoting
Opaque projector
From Wikipedia, the free encyclopedia
Jump to: navigation, search ---
The opaque projector, epidioscope, epidiascope or episcope is a
predecessor to the overhead
projector. It displays opaque materials by shining a bright lamp,
often limelight, onto the object
from above. A system of mirrors, prisms and/or imaging lenses is used
to focus an image of
the material onto a viewing screen. Because they must project the
reflected light, opaque
projectors require brighter bulbs and larger lenses than overhead
projectors. Care must be
taken that the materials are not damaged by the heat generated by the
light source. Opaque
projectors are not as common as the modern "overhead".
Opaque projectors are typically used to project images of book pages,
drawings, mineral
specimens, leaves, etc. They have been produced and marketed as
artists' enlargement
tools to allow images to be transferred to surfaces such as prepared
canvas, or for lectures
and discourses. In the early and middle parts of the 20th century, low-
cost opaque
projectors were produced and marketed as toys for children.
In educational settings, the specific role of the opaque projector has
been superseded by
the presenter, a lighted table with a fixed video camera above it. The
image from the
camera is displayed using a separate projector. The desktop presenter
unit sometimes
called an opaque projector.
--- end quoting ---
Now I wonder if they built one that does not ruin my photographs.
Anyone know?
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
.
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| User: "a_plutonium" |
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| Title: opaque projector Re: for education, is there a machine like overhead projector for photographs ??? |
23 Mar 2007 01:22:58 AM |
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a_plutonium wrote:
(snipped)
In educational settings, the specific role of the opaque projector has
been superseded by
the presenter, a lighted table with a fixed video camera above it. The
image from the
camera is displayed using a separate projector. The desktop presenter
unit sometimes
called an opaque projector.
--- end quoting ---
Now I wonder if they built one that does not ruin my photographs.
Anyone know?
I should have read that last paragraph instead of glossing over it. It
answers my
questions. What I am confused about, is why I have not seen any such
device
in schools, for it would be one of the best tools to teach.
And I think I will buy one myself to use especially for my paintings.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
.
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| User: "Paul O" |
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| Title: Re: opaque projector Re: for education, is there a machine like overheadprojector for photographs ??? |
23 Mar 2007 08:41:37 AM |
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a_plutonium wrote:
a_plutonium wrote:
(snipped)
In educational settings, the specific role of the opaque projector has
been superseded by
the presenter, a lighted table with a fixed video camera above it. The
image from the
camera is displayed using a separate projector. The desktop presenter
unit sometimes
called an opaque projector.
--- end quoting ---
Now I wonder if they built one that does not ruin my photographs.
Anyone know?
I should have read that last paragraph instead of glossing over it. It
answers my
questions. What I am confused about, is why I have not seen any such
device
in schools, for it would be one of the best tools to teach.
And I think I will buy one myself to use especially for my paintings.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
Arch-
If you think you might be giving this lecture more than once, you might
want to consider scanning your images into digital format, loading the
images onto a laptop computer, and display them using a digital screen
projector like one of these:
<http://www.viewsonic.com/products/tventertainment/projectors/pj458d/index.htm#features>
Actually, you probably won't need to purchase you own screen projector.
You can probably borrow one from the school that you will be lecturing at.
I'm almost afraid to ask, but what subject will you be lecturing on?
--
Paul D Oosterhout
I work for SAIC (but I don't speak for SAIC)
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| User: "a_plutonium" |
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| Title: world's fastest visual education machine Re: opaque projector Re: for education, is there a machine like overhead projector for photographs ??? |
24 Mar 2007 12:47:56 AM |
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Paul O wrote:
Arch-
If you think you might be giving this lecture more than once, you might
want to consider scanning your images into digital format, loading the
images onto a laptop computer, and display them using a digital screen
projector like one of these:
(snip website of projector)
Actually, you probably won't need to purchase you own screen projector.
You can probably borrow one from the school that you will be lecturing at.
I'm almost afraid to ask, but what subject will you be lecturing on?
--
Paul D Oosterhout
Thanks for that information, so I guess I am looking at about $1,100.
What I am after is a system in which, like running in a race, the
equipment
never holds me up.
Slide Projectors always seem to hold up a lecture or classroom. And it
is not
fluid in that you cannot go back or forward and there is always time
lost due
to the machine.
I want a piece of equipment that I simply get about 50 pictures and
like a sprinter
in a race show what pictures I want and in a 1 hour lecture can go
through those
pictures so fast that the audience has no downtime due to the machine.
Where I
can back or forward and where the next lecture is another set of
pictures.
In other words the worlds most fluid machine for education.
The trouble with the computer suggestion is that it also cuts in time
especially downloading
or clicking. In other words, no computer set up can be as fluid as
this 50 pictures that I
manually put down and manually take off and so this is the very
fastest visual display.
I want the most fast visual display and this is it.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
I work for SAIC (but I don't speak for SAIC)
.
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| User: "Tom S." |
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| Title: Re: world's fastest visual education machine Re: opaque projector Re: for education, is there a machine like overhead projector for photographs ??? |
24 Mar 2007 01:42:15 PM |
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"a_plutonium" <a_plutonium@hotmail.com> wrote:
The trouble with the computer suggestion is that it also cuts in time
especially downloading
or clicking. In other words, no computer set up can be as fluid as
this 50 pictures that I
manually put down and manually take off and so this is the very
fastest visual display.
I want the most fast visual display and this is it.
No, it isn't.
Any moderately capable computer (anything built in the last 10 years) has no
perceptiple delay in displaying a picture file from the hard drive. A click
takes something like 0.1 s. Are you really claiming you can pick up one
photo, put it down, grab the next one, and lay it on the projector faster
than that?
Tom.
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| User: "a_plutonium" |
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| Title: Re: world's fastest visual education machine Re: opaque projector Re: for education, is there a machine like overhead projector for photographs ??? |
24 Mar 2007 02:28:19 PM |
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Tom S. wrote:
"a_plutonium" <a_plutonium@hotmail.com> wrote:
The trouble with the computer suggestion is that it also cuts in time
especially downloading
or clicking. In other words, no computer set up can be as fluid as
this 50 pictures that I
manually put down and manually take off and so this is the very
fastest visual display.
I want the most fast visual display and this is it.
No, it isn't.
Any moderately capable computer (anything built in the last 10 years) has no
perceptiple delay in displaying a picture file from the hard drive. A click
takes something like 0.1 s. Are you really claiming you can pick up one
photo, put it down, grab the next one, and lay it on the projector faster
than that?
Tom.
Yes, I am claiming that because there is a Total Context Element here.
That the reliability
of getting a computer set up for a person traveling overseas or from
college to college and for
there never having a glitch in set-up.
With the Opaque Projector, I only worry about plugging it in. With the
Computer there are
thousands of periphery worries.
And for the speed at which I want to incorporate other images. With
the computer I have to spend
a lot of time in getting the image and images set up inside the
computer. With photographs, I either
have them or do not. And it is far easier to rearrange them but time
wasting if I had to rearrange them
in the computer.
It is like a computer and a dictionary in front of you. To find a word
in the computer takes about
5 minutes to turn on the computer and navigate to the word. The
dictionary in front of you takes
about 5 seconds.
So, I am talking about the total time spent and the maintenance. I
claim that no computer is as
reliable and as fast as a manual opaque projector to display visuals.
I am talking about the Total
Experience of setting up, of maintenance, of reliability, of concerns
that the lecture hall may not
have the electronics, of the assembling of a new arrangement of the
visuals. The total experience
tells me that the Opaque is faster and less time consuming than the
computer.
Also, another note, is that in lectures to say High School kids, a
computer is far easier to play a prank
or mess up than is a plug in opaque projector where I control what
pictures appear since I see them.
So you have to factor in the Total Experience and the computer loses
in that race.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
.
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| User: "Paul O" |
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| Title: Re: world's fastest visual education machine Re: opaque projector |
26 Mar 2007 08:41:11 AM |
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a_plutonium wrote:
Tom S. wrote:
<snip>
I want the most fast visual display and this is it.
No, it isn't.
Any moderately capable computer (anything built in the last 10 years) has no
perceptiple delay in displaying a picture file from the hard drive. A click
takes something like 0.1 s. Are you really claiming you can pick up one
photo, put it down, grab the next one, and lay it on the projector faster
than that?
Tom.
Yes, I am claiming that because there is a Total Context Element here.
That the reliability
of getting a computer set up for a person traveling overseas or from
college to college and for
there never having a glitch in set-up.
With the Opaque Projector, I only worry about plugging it in. With the
Computer there are
thousands of periphery worries.
<snip>
Well ok, if thats the way you feel. But let me point out that a laptop
computer and a projector (along with all of you pictures) will occupy
roughly one cubic foot of space and weight about seventeen pounds. You
can carry everything in a modest sized computer bag.
Your "Total Context Element" projector will occupy roughly 4 cubic feet
of space and weigh about forty pounds. And that does not include the
weight and volume of all your pictures.
Just something to think about.
--
Paul D Oosterhout
I work for SAIC (but I don't speak for SAIC)
.
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| User: "Paul O" |
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| Title: Re: world's fastest visual education machine Re: opaque projector |
26 Mar 2007 09:12:06 AM |
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Paul O wrote:
<snip>
Your "Total Context Element" projector will occupy roughly 4 cubic feet
of space
<snip<
Oops! a small opaque projector will occupy roughly 8 cubic feet (2' x 2'
x 2')
--
Paul D Oosterhout
I work for SAIC (but I don't speak for SAIC)
.
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| User: "tj Frazir" |
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| Title: Re: world's fastest visual education machine Re: opaque projectorR... |
26 Mar 2007 09:30:55 AM |
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euromodum
take pc with ya
get the modum for line out from euro in mail..
when you get there use it.
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| User: "Richard Herring" |
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| Title: Re: for education, is there a machine like overhead projector for photographs ??? |
23 Mar 2007 06:43:24 AM |
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In message <see-54E1AC.17274123032007@lust.ihug.co.nz>, Barb Knox
<see@sig.below> writes
In article <1174625235.159901.231860@y80g2000hsf.googlegroups.com>,
"a_plutonium" <a_plutonium@hotmail.com> wrote:
I have found out that the very best way to go into a classroom and
teach something is by carrying
a stack of photograph pictures about the subject and one by one
overhead project them to a large screen
and talk about each photograph.
Trouble is, I do not know if anyone has engineered such a machine.
I have a series of photographs that I want to form into a lecture, but
is there a machine for which I can
slide each picture into the machine and it projects it onto the
screen?
I am guessing there is none.
Bad guess. See <http://en.wikipedia.org/wiki/Opaque_projector>.
Ahhh, nostalgia. There was one exactly like this:
http://www.curzon.org.uk/collection/Epidiascope.html
in the geography classroom when I was at school.
I'm curious: what will you be lecturing on, and how did you convince the
school to let you do it?
There is a slide projector, but I want a
photograph projector. I suppose I
can take my series of photographs and turn them into slides.
Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies
--
Richard Herring
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| User: "Randy Poe" |
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| Title: Re: for education, is there a machine like overhead projector for photographs ??? |
23 Mar 2007 06:57:01 AM |
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On Mar 23, 12:47 am, "a_plutonium" <a_pluton...@hotmail.com> wrote:
I have found out that the very best way to go into a classroom and
teach something is by carrying
a stack of photograph pictures about the subject and one by one
overhead project them to a large screen
and talk about each photograph.
Trouble is, I do not know if anyone has engineered such a machine.
As they were common in classrooms in the 60s when I was
a child, I expect the answer is "yes".
- Randy
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| User: "tj Frazir" |
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| Title: Re: for education, is there a Tits 1o1 |
26 Mar 2007 09:27:01 AM |
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Get a laser projection tv.
Conect that dino pc up.
conect vcr and pc and record pc on vcr.
Put a cam overheat too with zoom so you can put anyones desktop on the
viewer.
You might use recorded desktop to compair
work methods. You might record desk top use of time.
You might point a can at a desk.
and use that method inthe viewer next year.
Shure they will learn more if its boath tex and visual.
You dont have to show pics ,,it might be math
Biulding a better classoom is a requirement of remaining a vital
nation.
In 30 years usa might be 4th in evrything.
A second world of poor ,,like inbrazil is starting in usa.
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