Comments on: Battery Powered World

By: Arden

Arden — Wed, 09 Nov 2005 17:03:36 +0000

Anyone got a circuit for induction charging of Li coin batteries?

By: Mechengr

Mechengr — Mon, 24 Oct 2005 23:05:23 +0000

Heh; perhaps kinetically-powered electronics would help break the human race out of it’s lethargic slump–imagine all children having to peddle a device with their feet to keep their game systems running! :P

By: Kevin

Kevin — Wed, 10 Aug 2005 01:24:01 +0000

What you’re also forgetting is that all of these radio stations would be giving out energy for free, and would want no part of that. You would end up paying more somehow, probably when initially buying the device, than the hassle is to plug it in. Unless you could find some way to convert oxygen or nitrogen into fuel on the spot for a cheap start-up price, this wireless energy idea is somewhat pointless. The kinetic energy is a good point though, however with our lazy society today, not many people will like it.

By: andres

andres — Thu, 31 Mar 2005 03:04:21 +0000

comment from a 13 year old:
good old kinetic energy is the best way to go for now. after all, what would be the point of making radio waves to power a cell phone if you end up losing the signal to the power signal. there are several hand crank cellphone chargers. but microwave chargers sound like a good idea if transmitted in a very thin, strong beam high up as to be able to be picked up by a coil, but high enough as to be out of the way from animals.
ps,microxave power transmission has been here for a long time. its just not popular

By: Alan

Alan — Thu, 17 Feb 2005 15:04:15 +0000

Well………actually Nikola Tesla did find a way to transfer electricity without using wires……..and also Michael Faraday found that quite a large amount of electricity could be extracted straight from the earths magnetic field no matter where you were in the world. These are technologies that were described in the vedic scriptures written in sanscrit 20,000 BC in India…….Tesla was very interested in the vedic scriptures and even spoke to a guru on them around the same time he was experimenting with electricity. This was over a hundred years ago……but unfortunately oil came along.

By: Anonymous

Anonymous — Tue, 07 Sep 2004 05:15:49 +0000

Hmm, someone is already on the job
http://www.freeplay.net/website/product/freecharge.php

By: old one

old one — Tue, 07 Sep 2004 05:04:34 +0000

Well this is simple. Wireless is about the least efficient solution you could dream of. Yes thre’s energy, enough in radion transmission that you can burn holes in walls with it. But it’s way too lossy.
The easiest and safest way is to just use the old fashioned simple kinetic human energy.
As long as power requirements aren’t too high, a simple wound spring will produce limitless energy as long as you wind it up.
Several brands of short wave radios, flashlights and camping lanterns are powered this way and have been for a long long time. The flashlights typically run about a half hour per wind up.
A touch of electronics for voltage regulation and the right plug on the end and presto, as much battery juice as you want for a crank.
no muss no fuss and a little exercise to boot.
Convert that snickers bar to calories and covert those calories to juice for your mp3 player.

By: DaBerries

DaBerries — Wed, 04 Aug 2004 10:23:42 +0000

I have the exact same problem with my laptop. If I unplug the little cable supplying juice to it the battery indicator says I have 3 hours of battery life left. I get about 15 mins use is all…
I’m all for wireless. Mail me when something significant happens on this front. If I’m near a plug when your mail arrives I’ll reply

By: hakejam

hakejam — Mon, 05 Apr 2004 18:04:13 +0000

Wired finally posted the article, Moore's Second Law.

By: Nick

Nick — Fri, 26 Mar 2004 14:29:48 +0000

You might like to check out the following book:
The scientist, the madman, the thief, and their lightblub – the search for free energy
(ISBN: 0743449762)
Some interesting ideas that do make you begin to think if there is a way to get limitless energy.