Skip to main content

Powered by body heat, this tiny flashlight doesn't need batteries


For the past ten years or so, I've made it a habit to carry a tiny penlight in my pocket whenever I travel. I wouldn't consider myself a hardcore flashlight enthusiast, but when I was younger I used to collect flashlights of different shapes, sizes and output colors. I still have them, lying somewhere in the house, ready for action in case of a zombie apocalypse.

If you're looking for a small flashlight with enough light output to find objects in the dark but would rather not keep supplying it with batteries, you might be interested in Lumen. It doesn't need any external energy source except your body heat. Ross Zhuravskiy is using Kickstarter to raise funding for his creation, and with 26 days until his initiative closes, he officially surpassed his initial $5,000 goal thanks to 477 backers. So how does it work?
"Lumen has relatively simple work principle - you touch TEG (Thermoelectric Generator) - small ceramic bar that can produce electric current when we provide temperature difference between upper and lower parts of TEG. 
In my application difference between temperature of your body (about 98 °F) and environment (at least 82 °F) is enough to generate power for single led. Metal body of Lumen serve as a radiator."
Check out the video below to learn more about this eternal flashlight.


Labels:

Comments

  1. Samir SutradharNovember 18, 2015 at 9:13 AM

    Without batteries a flashlight is so modern. I think its a fashionable flashlight. Thanks for describing in details. Nice and instructive post.......

    ReplyDelete
  2. UnknownFebruary 15, 2016 at 4:13 AM

    I love reading blogs posted here.Thanks.

    bunded fuel tank hire & generator maintenance

    ReplyDelete

Post a Comment

Popular posts from this blog

Hand-Painted Movie Posters by Tony Stella

In the 70s and 80s movie theaters in Manila were usually standalone buildings with nice seats and red curtains. To sell tickets, cinemas needed to advertise their offerings. But they did not have the original posters, or the means to print alternatives. So they made their own, commissioning local artists to hand-paint them. I really miss those hand-painted posters and billboards, which conveyed an artistry that was a form of visual hyperbole. But hand-made objects always have a way of returning. In this digital age, people will always look for things made by hand. I recently stumbled across the work of Tony Stella, whose genuinely cool movie posters have caught the eye of film enthusiasts and art lovers worldwide. He likes to work in watercolor and ink wash but sometimes he will make an oil painting, depending on the film. Tony's very active on social media, and his Tumblr blog contains a massive collection of illustrated movie posters that are often better than the original. ...
Post a Comment
Read more

The building blocks of your childhood dreams have finally arrived

Mini Materials in Winter Springs, Florida produces beautiful miniaturized construction materials at 1:12 scale. The cinder blocks are made from actual cement, the bricks are made from real terra cotta, and the pallets (which double as coasters) are built from real wood. For added durability you'll probably want to use their mortar that's thankfully easier to mix than the real thing. Whether you want to build your own miniature version of Winterfell Castle, the White House, or the X-Mansion, Mini Materials will let you make them as sturdy as their real-life counterparts. [h/t: Uncrate ]
Post a Comment
Read more

Weirdly Charming

If you’re a fan of art that makes you do a double-take, you need to check out  Richard Brener . Based in the UK, Richard is an internationally collected artist who works primarily with ink, fineliners, and gouache. When you first see his pieces, they actually look pretty playful. Then you realize the entire canvas is packed with thousands of tiny, ghost-like shapes he calls "champs." They’re all squeezed together like commuters on a rush-hour train, and the level of detail is honestly mind-blowing. Richard spends hundreds of hours drawing these little guys over and over. It’s obsessive, very intentional, and a little bit wild. The cool part is that the longer you stare, the more the vibe shifts. Check out more photos below:
Post a Comment
Read more