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You might also want to point out that the energy we consume each year 
is more than 400 times the what can be obtained from burning all biomass
on Earth. ...possibly even pose the question to visitors... how can we 
grow 400x more biomass on Earth to maintain our present fuel
consumption? 

Jeffery Dukes, the biologist who presented that calculation, published
the 
work in the journal "Climate Change" here... 
http://globalecology.stanford.edu/DGE/Dukes/Dukes_ClimChange1.pdf 

have fun 
diane 



<-----Original Message-----> 
>From: Midori Suzuki
>Sent: 11/17/2005 2:27:14 PM
>To: [log in to unmask]
>Subject: Re: Alternative Fuel education
>
>ISEN-ASTC-L is a service of the Association of Science-Technology
Centers
>Incorporated, a worldwide network of science museums and related
institutions.
>***********************************************************************
******
>
>Judy,
>
>My initial thoughts are hydrogen fuel cell and power generating system
>using biomass (disposal materials or crops, like Back to the Future
II). 
>Depending goals and cost of the exhibit that you have in mind, an idea
is
>to develop a battery using those resources and try to make a motor
move. 
>You can also compare cleanliness of exhaust from various sources. If
what
>you have in mind is workshops, you can have participants make hydrogen
>fuel cell (This really depends on the cost, since palladium chloride is
so
>expensive).
>
>Especially hydrogen fuel cell technology is developing remarkable, and
a
>research institute has open in UC-Davis.
>http://www.its.ucdavis.edu/
>
>There should be the way to design the exhibit hands-on, though.
>
>Midori Suzuki
>


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