In June 2005 Counting Thoughts involved schools in an experiment inspired by the first measurement of the mass of the Earth in 1774. Opposite is an item about it from Newsnight Scotland that was aired on the 27th July 2005. We would like to thank the BBC for giving us permission to make this clip available for educational purposes.
The clip shown opposite (320 240) or a larger version (640 480) can be downloaded for educational use by selecting the suitable option below.

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