DIYer removes screen from TV to create death ray laser

Electronic Products ^ | 03/25/2013 | Jeffrey Bausch

[EEGator]

He’s thrown down the gauntlet...time for Thunderdome.

Two men enter, one man leaves!

[muawiyah]

Do the computation ~ 4’ wide ~ hardly a child’s toy. Tremendous amount of light gathering power.

[fulltlt]

"energy source, anti-Zombie weapon after SHTF?"

How's that going to work? Don't zombies only come out at night? How do you focus the sun's energy at night?

[Cyber Liberty]

Is this the first lens anyone has developed where being unfocused has an impact on performance?

Apparently this is the first time somebody noted that since Galileo.

[GeronL]

zombies don’t care if its night or day, unless its entitlement zombies who wake up after noon

[Old Sarge]

[muawiyah]

http://bclee.net/lens.html Check this unworthy unbeliever!

[dhs12345]

Cool!

[dhs12345]

Weren't they characters on Battlestar Galactica. :)

[dhs12345]

Wow. On punch cards? Students should have to program on punch cards.

[dhs12345]

Ya. Kind of cruel. Hopefully they didn’t suffer too long.

[muawiyah]

This is a professionally made product ~ we made a REFLECTIVE version which is mathematically the same ~ but this device in this video is smaller than the one we made ~ http://bclee.net/lens.html There are a good number of videos on u-tube that’ll teach you all about this type of lens. One of the advantages to a reflective fresnel lense is you have a fixed focal length so you could set a hunk of meat at the focal point and cook it while the Sun moved ~ our experience demonstrated you have plenty of time to cook before needing to realign the lens.

[fulltlt]

"zombies don’t care if its night or day, unless its entitlement zombies who wake up after noon"

Everything I know about zombies which is very little I learned from watching "I am Legend". Are those some different breed of zombie?

[dhs12345]

It’ll last forever. Newer TVs, made after 2000, forget it. All junk. For that matter, all new appliances are all junk, too.

Our 24 inch CRT TV from 1988 outlasted all of our tube TVs including our DLP. We gave it to my wife’s grandmother when we bought our DLP. Still running, with a decent picture, when grandmother went into a nursing home.

[GeronL]

I suppose every writer and filmmaker have different visions of them.

[EEGator]

LOL, no punch cards. We have a lot more programs and languages to learn than you old timers. :)

[EEGator]

Cool, thanks for the link.

[Lurkina.n.Learnin]

My brother got sent to the principals office for frying ants with a magnifying glass. They still had a board of education. Used it on him too.

[dhs12345]

Ya. Your typical modern program would require a lot of punch cards.

I regret tossing my punch cards a few years ago. A bit of a novelty now.

The irony is that there are probably some computer systems that still use FORTRAN. Probably as old as the hills... like me. :)

[mountn man]

My brother got sent to the principals office for frying ants with a magnifying glass.

Guess they had a zero tolerance policy even back then.