Sujet
Jean Jallabert.
Légende
Jean Jallabert, 1712-1768, investigating the effects of points and knobs on electrical discharges whilst standing on a wax insulating platform, one hand touching an electrostatic generator and the other holding a pointed piece of wood. When its point neared one end of a conducting rod mounted on a pivot, the deflection of the rod caused by the discharge showed whether there was a positive or negative charge. From Les Merveilles de la Science, published 1870.
Date
1870
Crédit
Photo12/UIG/Universal History Archive
Notre référence
UMG23A59_181
Model release
Non
Property release
Non
Licence
Droits gérés
Format disponible
51,2Mo (5,5Mo) / 40,9cm x 31,4cm / 4827 x 3709 (300dpi)