Comments by "Michael RCH" (@michaelrch) on "PBS Eons" channel.

  1. I learned a cool Mnemonic for remembering the geological periods from the Cambrian onwards today. Camels often sit down carefully. Perhaps their joints creak. Cambrian Ordovician Silurian Devonian Carboniferous Permian Triassic Jurassic Cretaceous It worked! I added ...terribly quietly Tertiary Quaternary
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