The Shower problem

[Admin]

kk, I've been thinking this for ages and can never be bothered to actually experiment it.

kk, your in a shower and you've just got the right temperature. Let's pretend your 'right temp' is 2 turns of the hot tap (note this is only example) and 1 turn of the cold tap.
Oh no! The shower spray is too small!
So how would you increase the spray keeping the same temperature?

Would it be turning Hot 2 times and turn Cold once?
or would it be turning Hot 2 times, and turning the Cold twice as well?

The first one keeps the same ratio, but the second seems more likely... hmmm your guesses?

[Mangopie]

I do the former..XD (the ratios one)
I guess because the level coming out of each tap starts at zero.
And I assume the relation between the amount of water coming out and the number of tap turns is linear..? i.e 1 turn is x amount of water per second, 3 turns is 3x the amount of water per second, etc.

That means at 2 Hot and 1 Cold, there's 2x of hot water coming out/sec and 1x of cold water coming out/sec.

So...
if you increase Hot to 4 (+2) and Cold to 2 (+1), it's still 2 particles of hot water to 1 particle of cold water.

ETA: fixed up typos.

[shadowgregarzx]

Ah darn. My shower is just one bug velve. Cold on the right, and hot on the left.

[Phoenix Wright]

^^Mine too.... except the ones at my campground. they have the dual valve thing.

[ArkAngel]

Ummmm...actually i think most showers arent that simple...(well mine certainly isn't).

I also think its the former because if we work it out using (God forbid) maths, we see that keeping the ratio is the important, because...

If we have 2 hot water molecules (each with 2 energy units) and 1 cold water molecule (with 1 energy unit), then we average it out and (2*2 + 2*2 + 1)/5 = an average of 9/5 heat units (i.e. each water molecule has 9/5 heat units). IF we say, double everything...(4*2 + 4*2 + 2)/10 = and average of 9/5. We can just see it as (2*(2*2 + 2*2 + 1))/2*5. The 2s cancle out and yeah... each water molecule still has the same 9/5 heat units.

CHEERS!

[ddddyyyy]

I agree with Manqopie








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[altomarelatios]

^^ don't post ads please.

anyways, ratios work best

[Archer]

Remembering how many turns to do is bothersome.Every time I take a shower I just turn them till I get comfy cause sometimes the weathers too hot so I'll make it cooler and vice versa.But I'd take the first one cause that way the ratio is still the same.

[gigglechris2]

actually, while in simple mathematics and ratios the former would be correct, because this involves temperature and water etc. this isnt actually a situation where you would use ratios; so it would be the second one; a more explained way of getting to that deduction is this (note it is just an example and the mathematical figures used are not the actual #'s, just example ones) lets say that base water temp is whatever it is be it hotter or colder then 0 but for simplicity is represented by 0 degrees. so u have 0 and lets say one hot water turn gives +5 and one cold water turn gives -5

so u start with 0
then u add 2 hot water turns
0+5+5=10
so now u have 10 then u add one cold water turn
10-5=5
so the temp you want is represented by 5

now if u do 2 more hot AND cold turns u have total of 3 cold turns and 4 hot turns
so if you start at 0 then add 4 hot turns
0+5+5+5+5=20
then u add 3 cold turns
20-5-5-5=5
u still end up with 5 which is the temp you want =)
(also due to the communal property of addition if u did the turns in a different order you would get the same result (5))

[some1hackme]

hot showers are the best

[some1hackme]

Some showers have a twist to it on the faucet that you can adjust how you want the water to come out.

[hockey678]

I think it would just keep getting hotter either way, the cold water does not cancel the hot water out, it would just dilute the hotness of the water, it took me a while to think of this, very good question