William Derham
1657-1735
English naturalist and theologian best known for his Physico-Theology (1713), which abounds in arguments from design to God, and Astro-theology (1715), which argues that Newtonian cosmology is ample evidence of God's existence.
Derham also determined the speed of sound by timing the interval between the flash and roar of a cannon fired 12 miles (19.3 km) away (1705). His value of 1142 ft/sec (348.08 m/sec) is ingood agreement with the presently accepted value of 1130 ft/sec (344.4 m/sec).
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