Creating vacuum. A vacuum bell is connected to a vacuum pump. The pressure is monitored with an attached vacuum gauge. Initially the gauge reads zero relative to the atmospheric pressure. When the pump is turned on and the air is removed from inside the bell, the relative pressure decreases down to - 1 atm, indicating vacuum inside the bell. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Turtle Rock Scientific |
Bildgröße: | 7900 px × 3209 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |