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Il y a 1 jour · Heinrich Rudolf Hertz ( / hɜːrts / HURTS; German: [ˈhaɪnʁɪç ˈhɛʁts]; [ 1][ 2] 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell 's equations of electromagnetism. The unit of frequency, cycle per second, was named the ...
Il y a 1 jour · James Prescott Joule: Physik “For his paper on the mechanical equivalent of heat, printed in the Philosophical Transactions for 1850.” „Für seine Arbeit über das mechanische Äquivalent der Wärme, abgedruckt in den Philosophical Transactions für 1850.“ 1853: John Tyndall: Physik
