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15-year-old Canadian girl invents flashlight powered only by body heat...
Daily Mail ^ | 6-29-13 | By Ashley Collman

Posted on 06/30/2013 2:01:44 AM PDT by rawhide

...and earns spot in Google Science Fair finals

This girl's science project really puts your baking soda volcano to shame

A 15-year-old girl in Canada has invented a flashlight that only needs the warmth of the hand to turn on.

Ann Makosinski, a high school junior in Victoria, British Columbia, was trying to think of a way of harvesting untapped energy when she was inspired to make the flashlight.

She realized that the warmth generated by the human body was an overlooked energy source.

Her project objective was to create a flashlight that ran solely off the heat of the hand.

That objective was accomplished when she discovered Peltier tiles, which produce electricity when one side of the tile is heated and the other is cooled.

Makosinski realized she could use these tiles to create energy for her flashlight if she left the device hollow.

Holding the flashlight on the outside would cause the tiles to heat up on one side while the ambient air would cool down the tile on the inside of the flashlight.

The power created by the tiles was enough to power an LED light, but it did not create enough voltage.

To troubleshoot that issue she created a circuit that would allow for transformers, upping the voltage.

It worked! The flashlight does have one issue: it works better in colder temperatures since the inside is better able to cool down comparative to the person's body heat.

(Excerpt) Read more at dailymail.co.uk ...


TOPICS: Science
KEYWORDS: creativity; flashlight; heat; inventers; palm

This is kinda neat. Not sure how much candlepower is put out by this invention, but still kinda neat. Video at link.

1 posted on 06/30/2013 2:01:44 AM PDT by rawhide
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To: rawhide

Couldn’t you put peiltier cells on the back of solar cells and recover some wasted heat energy, or fabricate them in layers with the solar cells on top and the peiltier cells below them, with the back of the cell in the shaodw it could boost the effeciency....


2 posted on 06/30/2013 2:52:15 AM PDT by GraceG
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To: rawhide
Little Miss Smartypants! Well done.

Wonder what you could power if you made a jacket out of those tiles.

3 posted on 06/30/2013 2:59:33 AM PDT by mitch5501 ("make your calling and election sure: for if ye do these things ye shall never fall")
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To: mitch5501
Wonder what you could power if you made a jacket out of those tiles.

Laser eyeballs.


4 posted on 06/30/2013 3:02:48 AM PDT by Lazamataz (If illegal aliens voted (R), then the Dems would create the tightest border security in the world.)
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To: rawhide
Bobby "Blue" Bland Turn On Your Love Light
5 posted on 06/30/2013 3:16:01 AM PDT by csvset
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To: rawhide

> She realized that the warmth generated by the human body was an overlooked energy source.

Hopefully the government doesn’t or we might end up in a cocoon hooked up to wires ala Matrix style


6 posted on 06/30/2013 4:11:58 AM PDT by jsanders2001
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To: rawhide

I’m thinking why not solar powered LED flashlight to scare rapists away?


7 posted on 06/30/2013 4:12:17 AM PDT by DaxtonBrown (http://www.futurnamics.com/reid.php)
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To: rawhide

Has this got anything to do with how a mood dring works?

Whatever — not only is she smart and creative, she is very well spoken. Best of luck to her.


8 posted on 06/30/2013 4:18:20 AM PDT by afraidfortherepublic
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To: rawhide

Some people are hotter than others.


9 posted on 06/30/2013 4:23:03 AM PDT by freedomfiter2 (Brutal acts of commission and yawning acts of omission both strengthen the hand of the devil.)
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To: csvset
Mr Bland died a week ago today.
10 posted on 06/30/2013 4:26:25 AM PDT by metesky (Brethren, leave us go amongst them! - Rev. Capt. Samuel Johnston Clayton - Ward Bond, The Searchers)
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To: jsanders2001

It darn well better be, considering all that carbon dioxide we’re excreting!


11 posted on 06/30/2013 5:05:03 AM PDT by 9YearLurker
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To: afraidfortherepublic

Wonder why she pronounced volts like vaults.


12 posted on 06/30/2013 5:38:24 AM PDT by Rider on the Rain
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To: Rider on the Rain

she’s Canadian. probably some French background.


13 posted on 06/30/2013 5:58:17 AM PDT by ro_dreaming (Chesterton, 'Christianity has not been tried and found wanting. ItÂ’s been found hard and not tried')
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To: rawhide
Perpetual motion machine:

Strap a piece of buttered toast to a cat's back and drop from a 5-story building.

14 posted on 06/30/2013 6:03:21 AM PDT by twister881
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To: rawhide

Good job.


15 posted on 06/30/2013 6:26:50 AM PDT by TwelveOfTwenty (Ho, ho, hey, hey, I'm BUYcotting Chick-Fil-A)
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To: GraceG

My thoughts were going in a similar direction. Every little bit helps.


16 posted on 06/30/2013 6:45:42 AM PDT by shatcher (Judges 17:6b Everyone did what was right in his own eyes.)
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To: DaxtonBrown
bought one about a year ago.....been there done that....not large but quite handy....This one is similar to the one I have


17 posted on 06/30/2013 7:13:28 AM PDT by xp38
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To: rawhide

Could be kind of expensive to make, but they can be sold to the govt.


18 posted on 06/30/2013 7:26:43 AM PDT by Kirkwood (Zombie Hunter)
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To: rawhide

Good for her she’s a thinker.

Hope her friends don’t tease her and call her old hot hands Ann.


19 posted on 06/30/2013 7:32:11 AM PDT by Vaduz
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To: rawhide

Well that will never work for old people, their never warm, just ask them.


20 posted on 06/30/2013 8:56:52 AM PDT by Mastador1 (I'll take a bad dog over a good politician any day!)
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To: rawhide; Squawk 8888

Canada ping


21 posted on 06/30/2013 9:25:17 AM PDT by Don W (Know what you WANT. Know what you NEED. Know the DIFFERENCE!)
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To: rawhide; Clive; exg; Alberta's Child; albertabound; AntiKev; backhoe; Byron_the_Aussie; ...
To all- please ping me to Canadian topics.

Canada Ping!

22 posted on 06/30/2013 10:23:29 AM PDT by Squawk 8888 (I'd give up chocolate but I'm no quitter)
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To: rawhide

It’s a great idea... our bodies run lots of systems - why not a flashlight... etc.


23 posted on 06/30/2013 12:37:14 PM PDT by GOPJ (... liberal anger - - the privileged wheeze of entitled brats ... Greenfield)
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To: GOPJ

Not an invention, just a story that is catching on in the media because it has a girl in it. The peltier effect has been known since 1834, its not commonly used because its not efficient or effective in most cases. She might as well have strapped a solar panel to a flash light and called it an invention.


24 posted on 07/01/2013 6:34:54 PM PDT by Hiroopergum
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To: Hiroopergum

Don’t ruin FReepers dreams!!


25 posted on 07/01/2013 6:39:39 PM PDT by Osage Orange (Sic semper evello mortem Tyrannis)
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To: twister881
Perpetual motion machine:

Strap a piece of buttered toast to a cat's back and drop from a 5-story building.

Making that scheme work requires an expensive carpet underneath to attract the buttered toast. Dropping the cat from shoulder height should be sufficient. :=)

26 posted on 07/01/2013 6:48:01 PM PDT by Bob
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To: Bob
Hmmm...have always thought the buttered side is self-seeking, regardless of the surface.

The drop height is to allow the cat-toast combo to achieve terminal velocity, and then convert same to angular velocity at a height above ground level of ~8-10”.

8~)

27 posted on 07/01/2013 9:18:55 PM PDT by twister881
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