No. Perpetual motion is not possible.mcmpw said:
About 10 metres above the spillway of the catch tank. That is the height of a water-filled barometer, a column of water supported by atmospheric pressure with a near vacuum of water vapour above.mcmpw said:
PF Forbidden Topics said:
A torricellian vacuum is a vacuum created by filling a container with a liquid, such as mercury, and then inverting the container into a larger container filled with the same liquid. This creates a vacuum in the smaller container, as the liquid in the larger container prevents air from entering.
A torricellian vacuum is unique because it does not rely on mechanical pumps or other external forces to create a vacuum. It is created solely by the properties of the liquid and the force of gravity.
Torricellian vacuum tanks are often used in scientific experiments and industrial processes where a high level of vacuum is required. They can also be used to measure atmospheric pressure and to demonstrate the principles of vacuum in educational settings.
The vacuum in a torricellian vacuum tank is maintained by ensuring that there are no leaks in the container and that the liquid used to create the vacuum is not evaporating. The container must also be kept at a constant temperature to prevent changes in pressure.
Yes, there are some risks associated with using a torricellian vacuum in tanks. If the container is not properly sealed or maintained, it can implode due to the high pressure difference between the inside and outside of the container. Additionally, some liquids used to create the vacuum, such as mercury, can be toxic and require proper handling and disposal.