Author: Astronomy Cast
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Sponsored by Swinburne Astronomy Online at http://astronomy.swin.edu.au/sao/ Join +Fraser Cain  and +Pamela Gay for a live episode of Astronomy Cast. We'll record our 30-minute show, and then stick around to answer your questions about space and astronomy.  Astronomy Cast Ep. 369: The Fizeau Experiment Light is tricky stuff, and it took scientists hundreds of years to puzzle out what this stuff is. But they poked and prodded at it with many clever experiments to try to measure its speed, motion and interaction with the rest of the Universe. For example, the Fizeau Experiment, which ran light through moving water to see if that caused a difference.