We report on a determination of the Earth-Moon distance, performed by students of an Italian high school, based on measurements of the time delay of the "echo" in the radio communications between NASA mission control in Houston and the Apollo astronauts on the lunar surface. By using open-source audio-editing software, the distance can be determined with a similar to 0.1% accuracy, allowing us to observe the effect of the eccentricity of the orbit of the Moon.
Echoes from the Moon
GIRLANDA, Luca
2009-01-01
Abstract
We report on a determination of the Earth-Moon distance, performed by students of an Italian high school, based on measurements of the time delay of the "echo" in the radio communications between NASA mission control in Houston and the Apollo astronauts on the lunar surface. By using open-source audio-editing software, the distance can be determined with a similar to 0.1% accuracy, allowing us to observe the effect of the eccentricity of the orbit of the Moon.File in questo prodotto:
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