Urgent Evoke

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Has anyone thought about generating energy through keyboard strokes using the same method as energy from floor tiles? Under each key a small piece of metal could be built in and electricity could be gained from the deformation of the metal following a key stroke. Though this energy would be minuscule, a small contribution could be made if we pool all of the worlds keyboards. Imagine how many times a keyboard key gets pressed every day in the world. Let's do a Fermi calculation:

Roughly 2*10^9 people are connected to the internet today.

Let's assume that the average person performs 30000 strokes, but a lot of people don't use their computers daily, so we'll reduce that to half.

So this gives us (2*10^9) * 15000 = 3 * 10^13 keystrokes!

Views: 300

Comment by Adam Sunman on March 18, 2010 at 10:34pm
great idea - +1 creativity.
Comment by NickDutch on March 18, 2010 at 10:56pm
I did have an idea for using the pezo electric effect (when you squeeze a crystal it generates a charge) and putting that in the heel of shoes so that every step creates a small charge and at the end of a day you could take the stored power and us that to charge your laptop / mobile / 1 watt superbright LED torch that has been adjusted to be a reading light at night etc
Comment by Nick Heyming on March 18, 2010 at 11:20pm
Cool idea, not sure how much it would generate but for speed typists it could be significant!
Comment by David Goodman on March 18, 2010 at 11:31pm
Brilliant idea, I'm liking the pezo effect for generating the charge.
Comment by Raymond M. Kristiansen on March 19, 2010 at 10:11am
i am sure there has been done some research on this pezo effect. is it 'worth it'? i mean, you also have to consider material costs for Creating those things.

if you need to keep typing on a keyboard more than 1 year to even out the energy spent Making those "small pieces of metal" which are used under the keys - is it worth it? considering how often people seem to replace their computers... Also: how would something like this affect our usage of the keyboard? would it feel weird? or would it make no difference?

+1 creativity, but i urge us to collectively think more broadly as well, what other similar systems could we introduce that maybe have a greater effect?
Comment by Per Jonsson on March 19, 2010 at 12:55pm
Yes Raymond you're absolutely right. We need broaden our perspective.

Koshy, i doubt that these crystals generate enough power to light an entire stadium. My guess would be that that electricity generated would be enough to light an LED for a moment, but not much more. But I like the idea of making each building self sufficient without making any major changes. Use what we've got today to innovate for tomorrow!
Comment by Adam Sunman on March 19, 2010 at 12:58pm
Why not cover the roof of the stadium in solar/wind generators. ensure they are self sufficient.
Comment by Ng Zhilong Jerome-Christian on March 19, 2010 at 1:03pm
+1 creativity!

Why think about powering such big things when it can be used to power up laptop LED screens and such? since we normally press the keyboard keys way harder than we have to we'll have quite a bit of energy from that.
Comment by John D. Boyden on March 19, 2010 at 4:54pm
Now that's innovation. Extend that to all physical effort appliances/activities and how about gas/motized etc. appliances, all connected wirelessly to an electric grid... +1 Resourcefulness!
Comment by Brian Ballsun-Stanton on March 20, 2010 at 3:16am
For thoughts on this vein, look at what the largest energy source of the human body is. (easily collectable). We want to go after low-hanging fruit, not low-energy transactions like keyboards.

But cool start.


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