great project, thanks roland<br><br>I was thinking of some preliminary activities to introduce greek maths / science to start with including some nocturnal activities<br><br>eg. holding a ruler at arms length to measure the diameter of the moon, then using similar triangles to estimate the ratio b/w the moons diameter and distance of the moon from the earth (or using a coin if you have a partner to help)<br>
<br>which also happens to be the same as the ratio b/w the suns diameter and the distance of the sun from the earth (since the sun is exactly covered by the moon during an eclipse)<br><br>more info here:<br><a href="http://galileoandeinstein.physics.virginia.edu/lectures/gkastr1.html">http://galileoandeinstein.physics.virginia.edu/lectures/gkastr1.html</a><br>
<br><br>-- <br>Bill Kerr<br><a href="http://billkerr2.blogspot.com/">http://billkerr2.blogspot.com/</a><br><br><br><div class="gmail_quote">On Fri, Feb 29, 2008 at 12:28 PM, Roland Gesthuizen <<a href="mailto:rgesthuizen@gmail.com">rgesthuizen@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><h3><img alt="Eratosthenes science week image" style="margin: 5px 25px; float: left;"></h3>
<br><br>RMIT University is coordinating a national schools project inviting teachers and students from Years 10, 11 and 12 to re-enact Eratosthenes' famous experiment in measuring the angle of the Sun at local noon to determine the radius of the Earth from 16 to 24 August 2008.<br>
<br>It is a fun online activity that your students might enjoy doing at outdoors at lunchtime. <br><br>We had some fun doing this last year whilst we collected numbers and a splash of vitamin D. Maths might be tricky for younger students but fun to try.<br>
<br>Full details, study guide and student resources at:<br> <a href="http://www.rmit.edu.au/scienceweek/eratosthenes" target="_blank">http://www.rmit.edu.au/scienceweek/eratosthenes<br clear="all"></a><br><br>Regards Roland<br>
<br>-- <br>
Roland Gesthuizen - ICT Coordinator - Westall Secondary College<br><a href="http://www.westallsc.vic.edu.au" target="_blank">http://www.westallsc.vic.edu.au</a><br><br>"Never doubt that a small group of thoughtful, committed citizens can change the world; indeed it is the only thing that ever has." --Margaret Mead
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