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this will save us all

 
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beev



Joined: 24 Nov 2005
Posts: 112
Location: Edinburgh, Scotland

PostPosted: Thu Aug 25, 2005 2:24 pm    Post subject: this will save us all Reply with quote

From yesterday's Metro:
Quote:
A boy of 16 has invented a device that uses his sister's hamster to charge his mobile phone. Peter Ash built a generator that is driven by 18-month-old Elvis' exercise wheel. 'I thought the wheel could be made to do something useful, so I connected a system of gears and a turbine. Every two minutes Elvis spends on his wheel gives me about 30 minutes talk time on my phone,' he said. Peter, of Minehead, West Somerset, hopes the idea has helped him pass his GCSE electronics project.

Simple!
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Bandidoz
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Joined: 24 Nov 2005
Posts: 2705
Location: Berks

PostPosted: Thu Aug 25, 2005 2:54 pm    Post subject: Reply with quote

Hehe

Now scale it up and put Chavs inside Razz
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isenhand



Joined: 24 Nov 2005
Posts: 1296
Location: Sweden

PostPosted: Thu Aug 25, 2005 4:06 pm    Post subject: Reply with quote

sounds good to me Laughing How many hamster do we need to replace a power station Question

Rolling Eyes
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EmptyBee



Joined: 24 Nov 2005
Posts: 336
Location: Montgomeryshire, Wales

PostPosted: Thu Aug 25, 2005 6:57 pm    Post subject: Reply with quote



I wonder what the EROEI would be on one of those? Pretty bad I imagine (thermodynamics and all that).
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skeptik



Joined: 24 Nov 2005
Posts: 2969
Location: Costa Geriatrica, Spain

PostPosted: Thu Aug 25, 2005 10:36 pm    Post subject: Reply with quote

EmptyBee wrote:
I wonder what the EROEI would be on one of those? Pretty bad I imagine (thermodynamics and all that).


"In his essay on the history of the treadmill, biologist Steven Vogel estimates an average healthy male body can sustain production of about 100 watts over an eight hour day of treadmill labor. He also estimates that a body would need 350 calories per hour to produce this much electricity, given that a body also uses food energy for basic metabolic processes and that we are only partly efficient at digestion. Shorter bursts of activity can of course generate higher numbers."

source:
http://www.uic.edu/aa/college/gallery400/palmer/histories.htm
...an interesting page on the harnessing of human energy.\
(NB top two images not scaled for web -long load times)

So... it will take the sustained output of me and four of my neighbours to light my flat electrically via a treadmill when the power goes down... If I work away at if for a few months and charge up the battery that might just get me down to Tesco in a Toyota Prius.

Suggestion:

There are many health clubs with Nautilus machines in the developed world. Equip each machine with an electrical generator, connect to a monitoring computer system and feed the electricity generated back into the grid (or at least reduce the clubs load on the grid). Club members to get a discount on the next years membership fee on the basis of the ammount of electricity they generated in the previous year.

Wink
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beev



Joined: 24 Nov 2005
Posts: 112
Location: Edinburgh, Scotland

PostPosted: Fri Aug 26, 2005 12:17 am    Post subject: Reply with quote

Check this from WorldChanging; a fantastic variation...

http://www.worldchanging.com/archives/003351.html
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