Thompson’s “solar scorcher” device.
Posted on 03/29/2013 10:04:57 AM PDT by null and void
Plastic sheet focuses sun light to the point that it can melt pennies, boil water, more Grant Thompson, also known by the online moniker “The King of Random”, has posted a wildly popular video on YouTube in which he hacks an old, 50-inch TV to remove a plastic sheet from it for use as a “solar scorcher.”
Thompson’s “solar scorcher” device.
A bit more specifically, Thompson removed the TV’s front screen and separated the three parts that make up the component. Of the pieces, the TV’s Fresnel Lens displays a perfect ratio, Thompson notes, as it allows him to focus the sun’s rays onto a tiny spot or target.
The target spot which a TV’s Frensel lens creates.
When focused, the temperature on this spot reaches 2000 F which, as Thompson demonstrates, is hot enough to ignite wood, melt pennies, explode glass bottles, melt concrete, and more. Much more as a matter of fact.
An egg after it was exposed to Thompson’s DIY laser.
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.
The following videos come from this project. The first is a demonstration on how Thompson hacked open the TV; after that is a 4-minute clip that shows Thompson burning various objects.
To see more of Grant Thompson’s projects, clear a few hours from your schedule to check out his website, thekingofrandom.com
followed by Ctrl-K-K
Ran Wordstar on my CP/M machine, an NEC PC8801 circa 1980.
Happy Easter, all.
Duhhhhh, must have been written by a Walking Dead fan.
I can buy a couple dozen high wattage green lasers from China dirt cheap, each in itself many times stronger than your average pointer, strip them down to the bare emitter and using a machined aluminum plate can align these lasrs so they are virtually parallel over a long distance.
Then I would mount it on a quick traverse gimbal with a high power zoom camera. It would be portable, able to literally pop out of the roof of an obscure beater.
When I was just 14 I salvaged an old movie projector lamp, bought a huge magnifying glass, made a tube and found the best focus point, mounted it on a piece of wood like a rifle stock.
This was back in the 70’s.
Yes, those green lasers are amazingly bright.
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