Elektriske fænomener: elektrit er positivt og negativt. Teori af Benjamin Franklin (1706-1790) om de to elektriciteter, det ene glas (det positive) og det andet resinator (det negative). Anonym illustration fra 1925. Privat samling.(Electrical phenomena: electricite is positive and negative. Theory by Benjamin Franklin (1706-1790) on the two electricites, one glass (the positive) and the other resinator (the negative). Anonymous illustration from 1925. Private collection.)Anonymous Anonymous |
€ 122.69
Enthält 25% MwSt.
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Udateret · Engraving
· Billed-ID: 1048025
Private Collection / Bridgeman Images |
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