This video, from the absolutely fantastic YouTube collaboration called Sixty Symbols, explains why the 21st of June is the longest day, why we have seasons and how Eratosthenes used differences in shadow length to calculate the circumference of the world about 2000 years ago. Watch it – it’s really good.
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Archive | June, 2011
Diabolo…
June 5, 2011 
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One of the lovely things about the teaching profession is being amazed by the talents of your pupils. Whilst on duty one Sunday last term I happened upon some boys playing with their Diabolos. I only had my Blackberry to hand so the video quality is not great but my reaction was genuine. It is […]
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