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Subject:
From:
Peter A Anderson <[log in to unmask]>
Reply To:
Informal Science Education Network <[log in to unmask]>
Date:
Sat, 19 Sep 2009 09:07:33 -0700
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Alissa

In days gone by, when people used just a sharp knife to peel apples, it 
was a common breakfast table challenge to get the peel off as one 
continuous strip with a ring at each end - and no peel left on the apple.

This is rather off-topic, but apples often remind me (I am a geologist) 
that, if you blew an apple up to the size of the Earth,
the skin in thickness would represent all the crust, oceans, tectonic 
plates etc. and most of the atmosphere - everything that we know 
directly, and that is above the Mohorovicic discontinuity.  It's a 
useful scale reminder, but otherwise irrelevant to apples.  Maybe you 
could use it if Mike Levad's excellent experiments are completed before 
time runs out!

Good luck!  Peter Anderson

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