Légende

Registration of electric waves generated by a spark inductor, Groote Ruhmkorff, without capacitor, 8 cells by Grove. Increasing duration of the opening discharge with increasing metal contact. (Velin paper.), photograph, page, number: 'Pl. VI.', photographer: Willem Cornelis van Dijk, c. 1865 - in or before 1870, paper, albumen print, height 161 mm x width 128 mm, Photo on thirteenth unnumbered page after page 95., electrical phenomena, A large triangular shape fills most of the image, with one half a dark brown solid triangle set against a lighter beige background; the triangle's hypotenuse runs diagonally from the upper left toward the lower right, creating a sharp contrast between the dark and pale areas. The beige background shows subtle wavy horizontal impressions across its surface and small specks and spots of discoloration. The dark triangular area contains faint scratches and tiny marks. Along the bottom edge there is a narrow lighter strip and a lower border area with scattered small brown spots.

Crédit

Photo12/Liszt Collection

Notre référence

LZT26B11_116

Licence

Droits gérés

Format disponible

42.5Mo (4.6Mo) / 26.6cm x 40.0cm / 3138 x 4729 (300dpi)

Mots clés

Registration electric waves generated spark inductor Groote Ruhmkorff capacitor 8 cells Grove Increasing duration opening discharge increasing metal contact Velin paper photograph page number Pl Vi photographer Willem Cornelis van Dijk c 1865 - 1870 paper albumen print height 161 mm x width 128 mm Photo thirteenth unnumbered page 95 electrical phenomena large triangular shape fills image half dark brown solid triangle set lighter beige background triangle's hypotenuse runs diagonally upper left lower right creating sharp contrast dark pale areas beige background subtle wavy horizontal impressions across surface small specks spots discoloration dark triangular area contains faint scratches tiny marks bottom edge narrow lighter strip lower border area scattered small brown spots