Crooke tube with Maltese cross
420 Euros
Dimensions
24 cm Longer 22 Height
Circa
C 1890
Country of manufacture
Germany
Description
Crookes tube with a Maltese Cross.
The tube demonstrates that electrons go in a straight line and don\’t go through metal. The cross can actually lay down and stand up (mechanically). When the cross lies down, the glass face of the tube emits a green glow when the electrons strike the glass wall, when it\’s right up you will see the shadow of the cross.
Ask the Dealer
Dealer information
Antiques Le Saint Georges
Antiques Le St Georges was established By G.Bruguière de Gorgot in 1981 in south of France and now in Barcelona since 2004 .
We are specialized in Antique scientific instruments: Globes and Planetaria, Microscopes, Sundials, Mathematical instruments.
We advise and supply private collections and international museums.
We also buy valuable instruments.
You can visit us at www.globe-antique.com .
Do not hesitate to contact us at ghbdg@live.fr if you are searching for something in particular, or tel: +34637730240
