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#271926 - 09/29/14 01:47 PM Body-Heat Powered Flashlight!
MartinFocazio Offline

Pooh-Bah

Registered: 01/21/03
Posts: 2203
Loc: Bucks County PA
http://gajitz.com/best-brightest-hollow-flashlight-runs-on-your-body-heat/

"Ann Makosinski, a 15 year old student from Canada, made a flashlight for her science fair project – a flashlight powered entirely by the body heat of the hand holding it. "

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#271927 - 09/29/14 02:16 PM Re: Body-Heat Powered Flashlight! [Re: MartinFocazio]
James_Van_Artsdalen Offline
Addict

Registered: 09/13/07
Posts: 449
Loc: Texas
A 0.057 watt flashlight doesn't seem very bright. Maybe a trail light on a moonless night...

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#271928 - 09/29/14 02:16 PM Re: Body-Heat Powered Flashlight! [Re: MartinFocazio]
James_Van_Artsdalen Offline
Addict

Registered: 09/13/07
Posts: 449
Loc: Texas
A 0.057 watt flashlight doesn't seem very bright. Maybe a trail light on a moonless night...

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#271930 - 09/29/14 02:26 PM Re: Body-Heat Powered Flashlight! [Re: MartinFocazio]
hikermor Offline
Geezer in Chief
Geezer

Registered: 08/26/06
Posts: 7705
Loc: southern Cal
a warm tint, no doubt....

In a really dark situation, like a cave, fractional wattage would be a godsend. Incorporate some sort of storage device and you might really have something, especially if you could utilize the temperature differential between the inside and outside of a sleeping bag, or even clothing.


Edited by hikermor (09/29/14 02:35 PM)
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