[Peripherals] Charging the XO off a bicycle dynamo

[Edward Cherlin]

Has anybody looked at the Playpump schoolyard merry-go-round and
worked out what it would take to convert it into a generator and
either use the electricity to charge XOs, or store it for later use?

http://www.playpumps.org/

On Fri, Jan 2, 2009 at 10:11 AM, Sameer Verma <sverma at sfsu.edu> wrote:
> On Fri, Jan 2, 2009 at 9:13 AM, Matt York <myork at ompt.org> wrote:
>> Sameer,
>>
>> Thanks for your response.
>> After reviewing the web page on Cow Power, I can't understand how the Cow is
>> attached to the prototype.
>> Does the cow walk in a circle around a pivot like this image?
>> http://www.worldwideflood.com/ark/technology/ox_mill_small.jpg
>>
>
> Indeed. The cow/buffalo/bull/donkey walks in circles rotating the main
> shaft. The prototype isn't quite complete, as far as I could tell when
> I visited Khairat last year. Arjun could tell us more on where it
> stands and what else needs to be done with it.
>
> --
> Sameer
>
>> Or does the cow pull the prototype behind on wheels (like a Tonga cart)?
>>
>> Enlightening the world with technology,
>> Matt York
>> Executive Director
>> www.ompt.org
>>
>>
>>
>> Sameer Verma wrote:
>>>
>>> On Thu, Jan 1, 2009 at 9:50 PM, Matt York <myork at ompt.org> wrote:
>>>
>>>>
>>>> *Arjun Sarwal wrote:
>>>> *
>>>>
>>>>
>>>>>
>>>>> We switched over to using an alternator from a dynamo in our cow power
>>>>> setup because of similar issues mentioned below.
>>>>>
>>>>
>>>> How are you spinning the alternator? Do you have images or video of the
>>>> linkage/drive train?
>>>>
>>>>
>>>
>>> Here you go! http://wiki.laptop.org/go/Cow_Power
>>>
>>> Sameer
>>>
>>
>
>
>
> --
> Dr. Sameer Verma, Ph.D.
> Associate Professor of Information Systems
> San Francisco State University
> San Francisco CA 94132 USA
> http://verma.sfsu.edu/
> http://opensource.sfsu.edu/
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