Portrait of the German engineer and physicist Otto von Guericke (1602-1686). Guericke invented the air pump,and was the first to create and study the vacuum. Using the pump he showed that inside a vacuum,the sound of a ringing bell could not be heard and a flame could not burn. He also showed that when air was removed from between two metal hemispheres,the external atmospheric pressure forcing the hemispheres together was so strong that not even two teams of eight horses could open them | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Astronomical Society |
Bildgröße: | 3914 px × 6028 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |