X

This website uses cookies.

This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.

I agree
Learn More
Get Geeky Gifts in the Technabob Shop! Follow Us: E-Mail | Facebook | Twitter | Pinterest
Cool Gadgets, Gizmos, Games and Geek Stuff on Technabob
AWESOMER MEDIA SITES: THE AWESOMER | MIGHTYMEGA | 95OCTANE

Teen Creates Flashlight Powered by the Heat of Your Hands

by Hazel Chua
Advertisement

In times of great emergency, a flashlight is definitely one of the essentials to have, aside from food and water. When the electricity is out and it’s night time, you might have to stay in place and wait for the sun to rise if you don’t have a torch with you. Of course, you might have one but not the right batteries to power it up, but you have the Any Battery Light to depend on in that scenario.

But what if you don’t have any good batteries at all? What then?

Body Heat Flashlight

15-year-old Ann Makosinski probably considered that situation well and hard, and it led her to create a flashlight that only needs some body heat to function; specifically, heat from your hands. The device was made using Peltier tiles, which can create energy when one side of it is heated while the other is kept cool.

Ann put it together with a store-bought circuit, which provided enough voltage, and voila! That’s how the Hollow Flashlight came to be.

In this case, your hand provides the heat while the air inside the flashlight acts as the cooling agent. The entire thing only cost Ann $26(USD) to make!

Because of her Hollow Flashlight design, Ann is one of the finalists for Google’s global science fair.

[via ExtremeTech via Dvice]

Deals in The Technabob Shop



Threezero BioShock Big Daddy & Little Sister Action Figures

Threezero BioShock Big Daddy & Little Sister Action Figures

Star Wars Movie Realization Darth Maul, Jango Fett & Shadowtrooper

Star Wars Movie Realization Darth Maul, Jango Fett & Shadowtrooper

Advertisement
Ricky Gervais Laugh Track

Ricky Gervais Laugh Track

Driving the Hot Tub Car

Driving the Hot Tub Car

Another Batch of Awesomely Bad 1980s Car Commercials

Another Batch of Awesomely Bad 1980s Car Commercials

2019 Mercedes-Benz S560e: A Plug-in Hybrid Luxury Sedan

2019 Mercedes-Benz S560e: A Plug-in Hybrid Luxury Sedan