bath water

[maximus]

if a man peed in the bath would the water rise? presuming the man was in the bath whilst it happened and never moved

[ugly_bob]

Yes

[Gef]

No.

[maviscoull]

i wouldnt think so !!

[defenstrate]

yes, mainly through leaving a void (whats expelled not being replaced), unless you were to drink the bath water.
However if weighed if would still be the same weight at the start and end.

[B00]

remind me never to get in a bath after maximus..........

[bernardo]

No

[heathfield]

Yet another unneccessary posting where the questioner could have easily found out the answer for themselves! ;-)

[gen2]

heathfield Do you mean by self experiment?

Yuk!

[wildwood]

All things being equal.... I would say not. As the body voids the urine it becomes lighter, float higher and so displace marginally less water - just enough to compensate for the added peeeeeeeeeeeeee.

I can't believe I just answered this question. I must look for a new hobby.

[ugly_bob]

ah, but wildwood. you don't float in the bath. Your bum's on the bottom

[newtron]

Yes. As ugly_bob has stated you don not float in the tub. Therefore the water level only depends on the amount of fluid present in the tub and the volume of your body that is displacing the water. When you pee, the volume displacing the water does not change, but you are adding fluid to the system, which will result in a slight rise in water level.

[Brownlow]

This is not science...if you add water (of any kind) to your bath the level will rise. How on earth could you stop it?

[bernardo]

The people who have written answers saying that the water level in the bath would rise are all idiots.

The correct answer is "no", because the increased amount of liquid in the bath is exactly cancelled out by the decreased amount of liquid inside the man. The total volume of the contents of the bath below the surface of the water are exactly the same; the only difference is that some of it has moved from being inside to outside.

[newtron]

bernardo, the total mass is the same. I don't think the external shape of the body changes during urination. The volume of the body does not decrease. The empty bladder is the void mentioned by defenstrate. This is just like if you had a glass full of water sitting in a sink with water in it. If you take some water out of the glass and put it in the sink, the water level in the sink will rise.

[Garamond]

Mine always does

[wildwood]

If there is only a few inches of water in the bath then what is the point of the question?
Surely the question only needs some thought when there is enough water to lift the body from the bottom!

[newtron]

Wow, wildwood, you must have a large bath tub. I don't think I can put enough water in my tub to float.

[bernardo]

newtron - if you believe that "I don't think the external shape of the body changes during urination" then you are an idiot. Of course it does.

If you think that "The volume of the body does not decrease" then you are an idiot. Of course it does.

[newtron]

Bernardo, what happened to you? When I first discovered AB 2 years ago, I was very impressed with your ability to give logical detailed answers, and you provided well though out arguements. You even appeared to be a nice person. These days, your answers are rubbish. You usually just state your opinion and call everyone else names.

If I was a mature adult I would react to your name calling by ignoring you, but I'm not - DUMB@SS!!

[bernardo]

I only ever call people names or call them stupid if their answers are exceptionally stupid and idiotic, as was yours.