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

Of birds and tats

Larry Bird really doesn't like that mural of him which featured the three-time NBA MVP in a blue Indiana State jersey with tattoos all over his body. "The Great White Hope" is now trying to get it altered, and had his reps reach out to graffiti and street artist Jules Muck to do so. As WISH reports , soon after Jules completed the piece, she was contacted by Larry's lawyer asking her to do something about it, "citing unauthorized promotional value to her brand" and to the six trademarks owned by the 62-year-old former Celtics star. Larry's issue with the artwork was the tarnishing of his image and his 'brand' by affixing tats to his face, arms and neck. Jules meanwhile, said she never intended to offend the basketball legend. The image that inspired the mural came from the November 1977 Sports Illustrated cover story in which Larry was referred to as "College Basketball's Secret Weapon."
Post a Comment
Read more

Check out this insane music box powered by 2,000 marbles

The brainchild of Swedish musician Martin Molin, the Wintergartan Marble Machine , is a bizarre music box that allows the user to play tunes using a hand crank and 2,000 steel marbles. The Rube Goldberg'esque contraption features a vibraphone, bass, drums, cymbals and other instruments that play a score programmed into a 32 bar loop comprised of LEGO Technic parts. It's mesmerizing, and you can watch how they built it over here . [h/t: MailOnline ]
Post a Comment
Read more

Oil paintings that look like watercolors

Julian Meagher is an artist from Sydney who paints watercolor effect with oil. His paintings often revolve around Australian masculinity, juxtaposed by pop-culture references. Julian has an interesting back story. He's been a full-time artist for ten years, but prior to this he worked briefly as a doctor. The first few years was tough for him, and there were times he thought he should have sticked with his original profession. "It still feels weird to say I'm an artist," he told The Sydney Morning Herald . "You say that at a dinner party and you get weird looks. People think being an artist is a romantic, alcohol and passion-filled job. But it's not, and the idea of people seeing my work still scares me." Julian is a twice recipient of the New Work Grant from the Australia Council of the Art and has held solo exhibitions across Australia, Singapore, Hong Kong, India, Miami and Los Angeles. Be sure to check out his website for ...
Post a Comment
Read more