Alt-BEAM Archive

Message #05712



To: alt-beam@eGroups.com
From: matthew_gibson@excite.com
Date: Fri, 13 Aug 1999 19:45:16 -0700
Subject: [alt-beam] Re: Candle bots


matthew_gibso-@excite.com wrote:
I was just thinking that instead of using a candle or other
potentionally hazerdous sources of heat, you might want to try using a
peltier junction. For those of you who do not know what that is, it is
an electronic component that when electricity is being run through it,
one side gets extremly hot and the other gets cold. I have never tried
this but you could hook up a solar engine with a high storage capacitor
(i.e. 1F) and use it to heat up the water and provide locomotion in
combination with the bicore to provide direction. You also might try
using a stirling engine with a peltier junction. That would be a good
implementation of the Mechanic portion of BEAM. I don't know much
about peltier junctions but I imagine all of the above would work.

Matthew Gibson


original article:http://www.egroups.com/group/alt-beam/?start=5688
> You could try a simple coil of narrow bore copper tube
> with both ends under the water and the candle under the coil. It's a
bit
> more robust than an egg shell. This is the most basic design of
pop-pop
> boat. You could use a bicore to drive the rudder on the boat.
>
> -----Original Message-----
> From: Quidam [mailto:Quidam@cableinet.co.uk]
> Sent: Friday, August 13, 1999 12:27 PM
> To: beam@sgiblab.sgi.com
> Subject: Re: Candle bots
>
>
> In message <37AF7CD3.D6C491CB@cafe.net> you wrote:
>
> > If you use the candle for muscle wire (or steam power for that
> matter) may
> > be but the radiant energy is to low for a solar cell to use. Plus
> bringing
> > a lit candle to some dark part of the room (under the sofa maybe)
> will
> > light up the room alright and probably the rest of the house too.
> >
> > wilf
> >
>
> I remember making little boats using steam for power. I used an
emptyed
>
> egg shell with a pinhole in one end. This was filled with water and
> a candle used to turn the water inside the egg into steam, which shot
> out the hole to propell the craft.
>
> This could be a very simple way to propell a robot.
>
> David
>

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