Want this question answered?
* == 1st generation vacuum tube look like as a parallel electric bulb. _____ ----_____)
You can't see a vacuum, a vacuum is a process.
Yes. Just look at how heat travles from space to Earth.
-- look up the electrostatic permittivity of free space -- look up the magnetic permeability of free space -- multiply them -- take the square root of the product -- take the reciprocal of the square root The number you have is the speed of light in a vacuum.
First you need a vacuum pump with proper vacuum hoses; then you need some container which you can seal air tight, hook the vacuum hoses to, and it must be strong and rigged as to not collapse when a vacuum is pulled. Container will preferrablely have place to look into it for expierment, or be made of glass. Now turn vacuum pump on for an hour or so and you will have an ok vacuum/empty space.
your stink
so we can tell the weather and see the stars and moon and the 8 planets in space and it also helps us to see what the planets and stars look like to make films out of them to make it look realistic instead of usin a piece of scenery.
That would depend on the application as there are many uses and shapes and specifications for a vacuum breaker
they look like your grandparents bathroom
your stink
it look small
it does not have one.