The first symbols for circuit diagrams (resistor, capacitor etc) were almost all based on the physical appearance of the devices they represented. For instance, here's a capacitorpic.twitter.com/7ArPPGiZs1
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The first symbols for circuit diagrams (resistor, capacitor etc) were almost all based on the physical appearance of the devices they represented. For instance, here's a capacitorpic.twitter.com/7ArPPGiZs1
As a high school student, I understood the symbol of the capacitor, the inductor, .... but not the constant voltage 
Very similar to the icthibattery designed by Rulon deLesseps (1673-1745) in Liege. He alternated fresh cod with dry hazelnut shells to create electrical impulses to power his mill. It took a neighbor to point out that the mill ran due to its being on a stream not on a battery.
novidades
What a pile.
Is this discovered by A.Volta?
I guess this was not the olny design however was adopted
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