how do astronaut's use the bathroom in the space shuttle?

Question

its a project

Answer 1

It is a suction system. Small amount of negative pressure is applied to pull the waste into a storage tank.

Answer 2

Unlike early flights in the space programme, the shuttle has a relatively normal toilet. I say "relatively" as although superficially it looks the same, there are some differences to the equipment you'd find in your home...
For a start your toilet doesn't have personnel restraints! The shuttle toilet has "swing arms" that the astronauts swing into position over their legs which prevent them floating around.
There is also a low pressure suction from inside the bowl, to help ensure that everything moves in the right direction!
Finally, there is a centrifuge to spin out the material for processing - I'm *not* going into full details :)
With regard to liquid waste, there is a type of funnel which the men can "put themselves into" and which the women place between their legs. This is one piece of equipment for which each astronaut has their own personal example.
For some reason, which I've never been able to find out, in the early stages of the shuttle programme, the toilet was referred to as "Myrtle". This was discontinued after NASA received a rather indignant letter from a woman named Myrtle ...
This is a subject which often comes up when I give talks about the space programme. It's actually more fun talking about how this was dealt with in pre-shuttle days, when the conents of urine bags were dumped overboard - oops, I mean outboard - and as the liquid broke up unto small globules the sun reflicted off them and made them look like stars, which led to comments about the constellation Urion!

Answer 3

The toilet on the space shuttle costs about a million dollars, last I heard. It uses a fan for suction, so it literally "hits the fan" (I read that somewhere). That's a tremendous improvement over what the Mercury, Gemini, and Apollo missions had to use, which was sealable plastic bags.

Answer 4

They use a sort of vacuum cleanser - for adult males it is exceedingly ordinary - the ladies ought to develop slightly greater attachment to the astrocommode. interior the previous days earlier "area stations" they only used catheters and diaper/bags - and coffee residue diets to shrink the solids.