James Jespersen
James Jespersen has written at least 5 books. Their most popular book is From Sundials to Atomic Clocks: Understanding Time and Frequency with 1 save with an average rating of -⭐.
 From Sundials to Atomic Clocks: Understanding Time and Frequency
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 Looking at the invisible universe
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 Mercury's web
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 Time & clocks for the space age
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 Rams, roms & robots
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