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94 Comments
- MasterThief117, on 01/12/2008, -4/+61I am quite disappointed as I actually thought this was going to show me how I could charge my cell phone with my body heat.
- pimpofpixels, on 01/12/2008, -1/+27IT'S THE MATRIX!
- Lane, on 01/12/2008, -1/+21wonder how long till these things are buried under every road highway and driveway in the country?
- SiNN4R, on 01/12/2008, -0/+19I can finally start shoving electronic devices into my recharging cavity.
- MacEnvy, on 01/12/2008, -0/+15As though you weren't already.
- Katana314, on 01/12/2008, -1/+13The human body generates up to 600 kilowatts of electricity through body heat. There are farms, Neo. Farms made solely to turn humans...into this. (holds up a Duracell.)
- ZigVicious, on 01/12/2008, -1/+12dieng?
- thebellmaster1x, on 01/13/2008, -1/+11Take that, entropy!
- oxdeltaxo, on 01/12/2008, -0/+9Not only that but possibly recover lost heat energy from heat generating devices and turn it back into power.
- clkou, on 01/12/2008, -0/+7It's too bad they don't have a way to convert old banana skins and beer to power like Doc Brown did.
- eldridgea, on 01/12/2008, -2/+9Matrix?
- monospaced, on 01/12/2008, -0/+7Somebody needs to get outside and see the real world.
- ispeakasian, on 01/12/2008, -0/+6That's what she said.
- Veni_Vidi_Vici, on 01/12/2008, -0/+6Although that would be cool, I wasn't disappointed. I read the description.
- iammzac, on 01/12/2008, -0/+6sounds like a good idea if you're in the vibrating dildo business, if you catch my drift
- saifatlast, on 01/12/2008, -1/+7This entire thread just seems to be having a lot of difficulty with the letter "i".
- saifatlast, on 01/12/2008, -0/+5WHAT YOU SAY?
- pimpofpixels, on 01/12/2008, -0/+5In the movie the robots use heat energy from humans for power.
- stackered, on 01/12/2008, -0/+5Next up: charge your heater with body heat.
- Emused, on 01/12/2008, -2/+7Honey the phones dieng,lets have sex.
- gagman, on 01/12/2008, -1/+6This is why we have digg buttons.
- gagman, on 01/12/2008, -2/+6You should use spell check.
- PlutoPrime, on 01/12/2008, -2/+6Finally, women can enjoy prepetual recharging vibrator implants.
- Internazionale, on 01/12/2008, -1/+4Finally, sweaty balls will have a use
- l2OI3, on 01/13/2008, -1/+4Hahaha,
best comment I've read on digg in the last week. - pimpofpixels, on 01/14/2008, -0/+2Yeah it is. If you could make a sum-energy gain by growing food, feeding it to humans, and collectin g the body heat we'd have been doing it for years already.
- purzzzell, on 01/13/2008, -0/+2right, you can't produce more energy than you're putting out. But our bodies are giving it off and it's not going into anything, so the idea is to make use of it. I mean - my body heat that goes into the air doesn't do much - and if I put an object on say, my leg to absorb the heat from it while I sleep, it's not going to take away from my warmth at night.
- zspeed78, on 01/14/2008, -0/+2There may be a gradient between you and the outside.. but if I hold my phone in my pocket, and im 36C.. my phone is 36C. Unless I strap the phone to my neck, with the cold side exposed, I dont think theres much of a gradient.
The carbon fiber comment was mostly a joke, obviously. I dont see why it wouldnt be somewhat structural, as the resin ALONE dried is pretty useful for many things. But sure.. obviously not a straight carbon fiber replacement. - monospaced, on 01/12/2008, -0/+2The end of the article points to much larger issues than just charging "a variety of products" for consumers. The author hints at a way to harness the massive loss in energy as heat when generating electricity on a large scale. Quite hopeful.
- DontGiveADamn, on 01/13/2008, -0/+2The way thermoelectric devices work is by the transfer of heat. In other words you need a hot side and a cold side. As the heat moves to the cold side electricity is generated. If both sides of the thermoelectric device are hot you get nothing. Check out the second law of thermodynamics.
http://en.wikipedia.org/wiki/Second_law_of_thermod ... - shagg187, on 01/12/2008, -1/+3"Imagine a time in which you would not have to plug in your cellphone or iPod over night to recharge the battery. Instead you would power and charge a device simply by wearing it close to your body."
Stopped reading right there. Don't want no radiation, thank you. - Powerdrift, on 01/12/2008, -1/+3Sucks for Canada
- inactive, on 01/13/2008, -0/+2Maxwell's demon realized.
Nanotech has yet many more answers to seemingly impossibles questions...... - kibbled, on 01/12/2008, -1/+3That's what she said.
- Thex1138, on 01/13/2008, -0/+1Coppertop
- macguy815, on 01/13/2008, -0/+1you mean suppository charging?
- NukeMoose, on 01/13/2008, -0/+1perfect for sex robots!
- encumbent, on 01/14/2008, -1/+2you mean enthalpy right?? wak-ness, whats entropy doing? :)
- encumbent, on 01/15/2008, -0/+1its not converting heat to electricity - you are using the temperature gradient across the device (semiconductor) to generate the current (dont ask how) so there is no sucking of the heat out of you..
the only thing would be that these materials are much better thermal conductors than clothing fibers and the air trapped between, essentially allowing the heat to move away from you a lil faster but i doubt that one could even notice it (highly doubt) - KingGorilla, on 01/13/2008, -0/+1On a hot day that would be rather comfortable
- encumbent, on 01/14/2008, -0/+1true - but i think there mainly aiming to put it on garments - in fibers or somethin.. you'd need much more surface than phone itself..
resin alone it typically too brittle for any structural type application (often epoxy or similar) - need the fibers to combine material properties and do funky stuff to crack growth..
These devices are semiconductors - which have appreciable electrical conductivity and hence thermal conductivity (reducing efficiency significantly - mainly due to reducing the thermal gradient across device). These dudes have made a forest of semiconductor nanowires - with the principle aim of reducing thermal conductivity but nothing else (or not as significantly), thus increasing efficiency. I'd say you need a slab of stuff (not fibers) cause its the physical config of device, trapping bits of air (a low thermally cond. mat.).. - encumbent, on 01/15/2008, -0/+1there'd be a greater temp. diff between you and environment - more energy..
hurray for Canada!! - iMyst, on 01/13/2008, -0/+1I can't believe this idea is being dugg down!
- everslim101, on 01/13/2008, -0/+1I got bored reading the article a paragraph and a half in. If it wasn't for the good people you lot are who sum ***** like this up for people like me, I'd digg this down. I dedicate this digg up to all of you.
- forgiste, on 01/27/2008, -0/+1Look, I'll give you that one. But why wouldn't this work? You could vote all day from your cellphone.
- woofers07, on 01/13/2008, -0/+1So people are going to have electronic devices plastered to their skin in order to charge them?? Hmmmm....no possible long-term effects come to mind at all
- purzzzell, on 01/13/2008, -0/+1I too welcome our new google masters.
- kindrobot, on 01/13/2008, -0/+1Great! Next breakthrough: Powering it with mouth-breathing.
- zspeed78, on 01/13/2008, -0/+1Im guessing there has to be a difference in temperature correct? Thus, wearing it close to you wont do anything as the device itself would be the same temperature as you. But it sure sounds useful for generating energy from hot objects that we cool already anyway. Instead of carbon fiber, make a thermoelectric fiber mesh and build stuff with it..
- l2OI3, on 01/13/2008, -0/+1I almost want to know where the hands come into play, almost.
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