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DIYer removes screen from TV to create death ray laser
Electronic Products ^
| 03/25/2013
| Jeffrey Bausch
Posted on 03/29/2013 10:04:57 AM PDT by null and void
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Two things:
I would expect a technical publication to be a little more precise in their language, this is hardly a laser.
I'm sure no FReeper would ever actually do this...
To: null and void
2
posted on
03/29/2013 10:08:09 AM PDT
by
EEGator
To: null and void
What’s particularly noteworthy about this project is the fact that when the lens is unfocused, it’s harmless. Only when it’s positioned right will it super-focus the sun’s light. Is that really noteworthy? Is this the first lens anyone has developed where being unfocused has an impact on performance?
3
posted on
03/29/2013 10:08:56 AM PDT
by
ClearCase_guy
(The ballot box is a sham. Nothing will change until after the war.)
To: null and void
Ya know my parents have an old 50” in their garage they ain’t using anymore...
4
posted on
03/29/2013 10:10:33 AM PDT
by
Domandred
(Fdisk, format, and reinstall the entire .gov system.)
To: null and void
I'm sure no FReeper would ever actually do this... I'm going out to the shop to look for old flat-screen monitors. I know I've got some out there....
/johnny
To: EEGator
We're gonna need a "Hey y'all, watch this" pinglist. ;)
/johnny
To: null and void
When I was a young’n there was a mail-order company called Edmund Scientific Corporation. They sold fresnel lenses as well as a bunch of other cool stuff like prisms and optical equipment for geeky kids like me.
7
posted on
03/29/2013 10:12:17 AM PDT
by
COBOL2Java
(Fighting Obama without Boehner & McConnell is like going deer hunting without your accordion)
To: null and void
All types of stuff on Youtube with this kind of stuff.
Look up solar heaters. People have used fresnel lenses and/or parabolic reflectors to heat water. all sorts of things.
8
posted on
03/29/2013 10:14:47 AM PDT
by
mountn man
(ATTITUDE- The Pleasure You Get From Life, Is Equal To The Attitude You Put Into It.)
To: null and void
"No, Mr. Bond. I expect you to die!"
9
posted on
03/29/2013 10:15:48 AM PDT
by
Bratch
To: JRandomFreeper
That would be great. “Hold muh beer” should be included as well. There are a bunch of smart FReepers, we could probably have some sweet videos to watch...and plenty of new prayer threads. :)
10
posted on
03/29/2013 10:16:10 AM PDT
by
EEGator
To: null and void
When I was a child we did this on a smaller scale with a magnifying glass that we got at the 5 and dime. We could put ours in a pocket or book bag.
11
posted on
03/29/2013 10:16:49 AM PDT
by
fella
("As it was before Noah, so shall it be again,")
To: JRandomFreeper
Archimedes would be PROUD!
12
posted on
03/29/2013 10:18:44 AM PDT
by
Kartographer
("We mutually pledge to each other our lives, our fortunes and our sacred honor.")
To: COBOL2Java
13
posted on
03/29/2013 10:18:46 AM PDT
by
Rio
(Tempis Fugit.)
To: fella
Ah yes, with a sunny day and a good magnifying glass, no anthill was safe..........
To: Rio
Oh cool! Gosh, it’s been too many years...
Last time I browsed one of their catalogs as a kid, NASA was building the Saturn V. God, I feel old... ;-)
15
posted on
03/29/2013 10:25:51 AM PDT
by
COBOL2Java
(Fighting Obama without Boehner & McConnell is like going deer hunting without your accordion)
To: Kartographer
ArchimedesOld guy that jumped out of the tub and ran naked down the street yelling "Eureka!", which is Greek for "The water is too hot!". That guy? ;)
/johnny
To: COBOL2Java
I really enjoyed just browsing the catalog, too. Great magnets and experiments.
17
posted on
03/29/2013 10:27:33 AM PDT
by
Rio
(Tempis Fugit.)
To: COBOL2Java
Anyone that knows what COBOL or FORTRAN is... IS OLD.
/johnny
To: JRandomFreeper
We still have a course in FORTRAN here.
19
posted on
03/29/2013 10:29:11 AM PDT
by
EEGator
To: doorgunner69
"Ah yes, with a sunny day and a good magnifying glass, no anthill was safe..........
Make my day glass boy!
20
posted on
03/29/2013 10:29:52 AM PDT
by
Kartographer
("We mutually pledge to each other our lives, our fortunes and our sacred honor.")
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