mathman said:Is the object inside an enclosure? If not, air would come in immediately.
Are you certain that this is true? Could you explain the logic please? So then a supercavitation type of phenomenon would be possible but with a vacuum.mgb_phys said:Well it couldn't come in faster than the speed of sound.
Would you mind elaborating please. Thanksmgb_phys said:Something pretty similair happens to make thunder
Yes, a temporary vacuum can be created. A vacuum is an area with no particles, and while it may be difficult to achieve a perfect vacuum, it is possible to create a space with a significantly lower density of particles.
A temporary vacuum can be created by removing the particles in a specific space. This can be done through various methods such as using a pump to suck out the air or using a container to trap the particles in a smaller area.
The purpose of creating a temporary vacuum is to study the behavior of particles in a low-pressure environment. This can help with understanding the properties of different materials and how they interact with each other.
It can be safe to create a temporary vacuum, but precautions should be taken to ensure the safety of the people and equipment involved. Careful planning and appropriate safety measures should be in place to prevent any accidents or damage.
The duration of a temporary vacuum depends on the method used to create it and the conditions in the surrounding environment. It can range from a few seconds to several hours. Eventually, the vacuum will be filled with particles again through diffusion or other forces.