Did you know?
Height of the `Shard` skyscraper (London) (310 m) is 2.5 x Height of the spire of Salisbury cathedral (123 m)
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Mass of a Block IIR GPS Satellite in orbit (1,080 kg)
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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