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

Gilbert Legrand turns mundane stuff into delightful characters

Gilbert Legrand doesn't see the world like the rest of us. You see a scrubbing brush, he sees an Apache chief. You see a a pair of scissors, he sees smooching lovers. The French artist's imagination is so wild and unrestricted that he can turn the most ordinary objects into unexpected sources of delight. I just spent half an hour lurking on his website, and you should, too.
Post a Comment
Read more

Dealing with Job Rejection

Rejection takes many forms: The varsity team, Tinder, the credit card, the university, the girl next door, Google AdSense, the job. Growing up, I never wanted to be a journalist. I wanted to be a pilot, or a shipmaster, like Captain Nemo. And then in my second year of college, I decided I wanted to be in public relations. After graduation, I applied to seven PR firms in Manila and got seven rejection emails. The job seemed perfect. The interviews went smooth. I was optimistic. But, they hired someone else.    Being rejected after a job application can seriously break your self confidence and morale. I was devastated when I got turned down too many times, and I became depressed, angry and quite difficult to live with. However, I realized that wallowing in misery and regret will never help. So I took a step back, analyzed my job search strategy and determined my flaws.    Have you been rejected recently? Cheer up! Just because someone says no today doesn't mean it'...
Post a Comment
Read more

Nick Smith creates NSFW prints using Pantone color chips as pixels

Scottish artist Nick Smith , known for his Pantone mosaics, recently unveiled his latest work at London's Lawrence Alkin Gallery . Called Paramour , the erotic images look like they've been heavily pixilated, almost like 8-bit art. If you look at them up close, you'll only see the Pantone color swatches, but if you step back—or zoom out—you'll see the NSFW pieces. "Marking 400 years since Shakespeare's death, Paramour employs Nick Smith's signature 'colour-chip' methodology, combining modern nudes with excerpts from the Bards' sonnets and plays. As well as Shakespeare's Romeo and Juliet and Venus and Adonis , the works feature racy text from poetry and prose by DH Lawrence, John Cleland, EM Berens and Sarah Walters. Exploring lust, love and appreciation of the female form, Paramour brings classic literature to the modern conscience, telling stories of illicit love through evocative imagery." [h/t: WideWalls ]
1 comment
Read more