1 way is to light a match in a sealed glass. The fire uses up all the oxygen, thus creating a vacuum in the glass. ------------ Actually lighting a match inside glass will not create a vacuum. It...
A vacuum can be created by removing air from a space using a vacuum pump or by reducing the pressure using a fast flow of fluid, as in Bernoulli's principle,principle that relates pressure, velocity,...
A vacuum pump is any device which does work to transfer air from one volume to another volume, and thereby reducing the pressure of the first volume. There are several different types of vacuum pumps...
A perfect vaccuum is one in which there are no molecules of anything in it. That means no atmosphere, no nothing. But, that has nothing to do with the effects of gravity. Outer space is very close to...