[DC LoCo] hank crank recharger for new ubuntu tablet

[Nicholas Wheeler]

So then, the next question is, how big of a tube, and how poweful of a
magnet (electromagnetic induction) do you need to be able to generate
enough power to power this ubuntu tablet? Does anyone have any specs
on the tablet's power consumption rate in watts?

This flashlight uses the principle:
http://www.modernoutpost.com/gear/details/ee_shakelight.html



On Mon, Sep 28, 2009 at 2:10 PM, Kevin Cole <dc.loco at gmail.com> wrote:
> http://wiki.laptop.org/go/Peripherals notes "None of these products
> are currently sold by OLPC" and then links to (among others)
>
> http://wiki.laptop.org/go/Product_News#Hand_Powered_Clamp_Charger and
> http://wiki.laptop.org/go/Peripherals/Hand_Crank
>
> the first of which notes "Testing has shown that the hand crank is not
> practical for classroom use. Currently the XO requires more power than
> is easily generated by hand movement."
>
> As for other hand-cranked devices, we've got a couple of hand-cranked
> flashlights, and hand-pumped flashlights, as well as a crappy
> hand-cranked radio.  As I recall, Restoration Hardware
> (http://www.restorationhardware.com/rh/index.jsp) in Georgetown was
> our source for the radio:
> http://www.restorationhardware.com/rh/catalog/product/product.jsp?productId=prod120069&navAction=jump
>
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-- 
Nicholas Wheeler
Systems Administrator
Development InfoStructure