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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An excellent earth measurement activity is described here: 
http://epod.usra.edu/archive/epodviewer.php3?oid=61280  replicating 
Eratosthenes's 240 BCE calculation of the diameter of Earth.  Links 
on that page to "mass experiments" at the two equinoxes.  I used this 
activity to begin a high school physics class and discovered that my 
students were quite wobbly about basic geometry.

I doubt that the diameter of Earth changes with climate change, but 
you might find satellite photos of the Nile delta over a number of 
years to compare. Best from Jane

>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>Has anyone experiemce with or good ideas for mass experiments around 
>durability, environment, climate change?
>We would like to do a large scale experiment in Flanders (in 
>collaboration with a media partner) in which everyone who wants can 
>easily participate. The fact that may peole do an observation, or a 
>measurement results contributes to the overal result.
>
>Examples could be: when and where  do you observe the first 
>swallows, or when does flower x start to blossom, or a recording of 
>temperature,..
>f you have ever done something like this I would like to hear from 
>you. What works?
>
>
>
>kind regards,
>
>Patricia
>
>Patricia Verheyden
>Manager of exhibits
>Technopolis, the Flemish Science Center
>Technologielaan, 2800 Mechelen, Belgium
>tel. + 32 15 34 20 20; fax + 32 15 34 20 10
>mailto:[log in to unmask]     http://www.technopolis.be
>


-- 
Jane Snell Copes	  Science Outside the Box    651-357-3316 (cell)

Science Outside the Box is a tiny business that celebrates the 
scientist in every one of us.  I am a writer and teacher, and I have 
fun with science every single day.  I'm especially fond of designing 
classes and science magic shows for kids and parents.

"To be an inventor, you need a good imagination and a big pile of 
junk."  Edison

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