Did you know? Duration of Pandyan Empire (South India) (1,850 y) is 400 x Period of Ceres's orbit (4.6 y)
Altitude of a geosynchronous orbit of a satellite around the Earth (35,800 km)
/fact/altitude-of-a-geosynchronous-orbit-of-a-satellite-around-the-earth
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"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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