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Handmade #Greenwich #Galvano-Magnetic wooden clock #UnitedKingdon #Earlybiz - WorldwideShipping https://t.co/c6j3VQVoWg
Using a sensitive #galvanometer, the italian physicist Carlo #Matteucci (1811-1868) was able to prove that injured excitable biological tissues generated direct electrical currents, and that they could be summed up by adding elements in series.
#histmed #physiology #medicine