Slight change of subject from all this great great interesting work--Can one run a data projector off of fuel cells? I'm wanting to make a shopping cart data projector system that - ideally- works off solar but might work with a car battery.
Problem is duration - car battery might power the projector for 2 hours max - and would - currently - require a DVD player, too --as it is a slightly older model. Any suggestions especially about solar panel and storage or conversion?

I realize there are new projectors that run off battery. I'm doing this with what I have. Then I can project when I like on walls, etc.

Molly



On Aug 10, 2012, at 10:39 AM, "Rafael Diniz" <rafael@???> wrote:

> Alou!
> Fuel cells seems a good bid also...
> http://www.engadget.com/2011/09/22/microbial-fuel-cell-produces-hydrogen-from-wastewater-without-wa/
>
> Abraços,
> juba
>
>
>> Alo!
>>
>> Il 10/08/2012 13:44, jhopkins@??? ha scritto:
>>> I believe simpler more localized 'technology' which can include things
>>> like one's own internal bio-rhythm system provide us with a better
>>> solution. As soon as we rely on the plethora of techno-fetish objects
>>> that are out there (machines!) we become dependent. It's just a choice
>>> each of us has to make -- the dependency versus the possibilities...
>>>
>>
>> We built two hydro-electric generators with broken HD magnets in an open
>> workshop with quilombos communities. The generators are installed and
>> powering some houses. Communities already repair by their self couse the
>> participate to building:
>>
>> http://www.mocambos.org/voz-livre/projeto-voz-livre/gerador_quilombola4.pdf/view
>>
>> http://www.mocambos.org/galeria-de-fotos/gerador-de-luz-quilombola-pajelanca-2010-e-quilombo-ribeirao-grande
>>
>> http://www.youtube.com/watch?v=vtz80O1Ppuk
>>
>> Abraço,
>> Vince
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>
>
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