Magdeburg hemispheres, ca 1920
2 hemispheres, brass
Inv. No: IV - 260
Physikmuseum
Below: contemporary picture showing the
experimnt of Otto von Guericke [1602-1686]
1654 at the "Reichstag von Regensburg": 2
hollow hemispheres of 2/3 Ellen diameter
with excellent fitting borders were
evacuated and only 16 horses were able to
seperate them followed by a loud acoustic
shock.
