Teaching Physics with the Physics Suite
Galileo tried to measure the speed of light by having two people stand on hills about 5 km apart. Each would hold a shuttered lantern. The first would open his lantern and when the second saw the light, he would open his lantern. The first person would then measure how much time it took between the time he first opened his lantern and when he saw the light returning.
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Page last modified October 23, 2002: OP01