How the Earth Moves - Professor Carolin Crawford

Our spaceship Earth is in constant motion -- rotating and revolving as it traverses through space: http://www.gresham.ac.uk/lectures-and...

This is a story of our evolving understanding of the geography of Earth's position in space -- a story of parallax, aberration and astrometry that stretches from the ancient Greeks to the most modern satellite, Gaia.

The transcript and downloadable versions of the lecture are available from the Gresham College Website: http://www.gresham.ac.uk/lectures-and...

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