## How many ways can you empty a glass of water?

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Luthen
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### How many ways can you empty a glass of water?

I buzz tipping it out.

NOTE: ^ Typed by a friend of Luthen, Luthen holds no responsibility for this thread.
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Interactive Civilian
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### Re: How many ways can you empty a glass of water?

Don't know if this is really a scientific thread or not, but I can only think of 3:

1. pouring it out (as mentioned)
2. puncturing/removing the bottom so it drains
3. allowing it to evaporate

HTH.
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masher
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### Re: How many ways can you empty a glass of water?

You could electrolyse it all.

wst
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### Re: How many ways can you empty a glass of water?

You could accelerate it downwards at the rate faster than g.
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### Re: How many ways can you empty a glass of water?

Suck it out or pump it out in some way.
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hyperion
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### Re: How many ways can you empty a glass of water?

1) Teleport the water but not the glass
2) Teleport the glass but not the water
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### Re: How many ways can you empty a glass of water?

Shove a sponge into it and absorb the water.

Luthen
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### Re: How many ways can you empty a glass of water?

Um, oops, shouldn't've left my laptop open. I think its his idea of feather weighing. I don't think it is serious but here's my suggestion:

Heat glass to 110C
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mazzilliu
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### Re: How many ways can you empty a glass of water?

freeze the glass of water then let it sublimate

rather then pour out the glass, send it into outer space, and in micro gravity the water will float out

smash the glass to bits... the water will end up coming out

get a straw and drink the water, put a sponge in the glass big enough to absorb all the water then remove the sponge, basically insert some water-removing object into the glass and remove the water using it

add something which reacts with the water chemically creating a solid(does that count?)

fill the glass with water that is made with unstable isotopes. when they decay the remaining molecules wont be hydrogen and oxygen anymore, i think. the heat generated will boil the rest of the water

insert an impeller or ultrasonic humidifier into the glass of water and turn it on
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tiny
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### Re: How many ways can you empty a glass of water?

Shout at the water to leave your glass alone until it does.
Lift the water out of the glass using telekinesis.
Push the water into a parallel universe, using sheer willpower.
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andyisagod
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### Re: How many ways can you empty a glass of water?

Pour in an equal amount of anti-water

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### Re: How many ways can you empty a glass of water?

Measure its momentum really, really accurately.

Repeat if necessary.

silent man
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### Re: How many ways can you empty a glass of water?

Fill the glass with mercury or any other high density liquid.

Use extremely thin tubes to make the water leave due to capillary action.

Add chunks of sodium of different sizes and shapes until it stops being funny.

Change your definition of 'outside the glass' to include the room occupied by the water.

Put the glass into a vacuum chamber and reduce the ambient pressure until the water is boiled away.

Reverse the flow of time for the glass until it passes the point at which it was filled with water.

Mettra
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### Re: How many ways can you empty a glass of water?

seladore wrote:Measure its momentum really, really accurately.

Repeat if necessary.

I'm pretty sure you can all stop now. This is the winner.
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someguy
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### Re: How many ways can you empty a glass of water?

Shove the butt of a second (identical) glass into the first so it displaces (most of) the water.
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Puck
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### Re: How many ways can you empty a glass of water?

Nuke it from orbit. It's the only way to be sure.
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### Re: How many ways can you empty a glass of water?

Puck wrote:Nuke it from orbit. It's the only way to be sure.

Or if that doesn't work.

I'd just add spoonful of orange concentrate. you now have a glass of squash and not water.
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kalma
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### Re: How many ways can you empty a glass of water?

...Define the water to be outside the glass?

Edit: Turns out posting and then reading the replies isn't that good. So now I have to find a new one...

...Define the rest of the Universe to be inside the glass?

Failing that, locally reverse entropy until the water freezes on its own. But of course if you find a way around the 2nd Law of Thermodynamics you'd probably be busy to do it. With the infinite power generation, time traveling and all.

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### Re: How many ways can you empty a glass of water?

Mettra wrote:
seladore wrote:Measure its momentum really, really accurately.

Repeat if necessary.

I'm pretty sure you can all stop now. This is the winner.
I second that motion. Proceed to vote. All in favor of declaring seladore the winner, say "Aye."

(chorus of 'aye')

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e946
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### Re: How many ways can you empty a glass of water?

I don't get the momentum one.

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### Re: How many ways can you empty a glass of water?

You can't know the position and momentum of an object, simultaneously, to arbitrary accuracy.
More exactly, they are related - if you know the position more accurately, it causes an associated uncertainty in the momentum.
Even more exactly,
$\Delta X \Delta P \geq \frac{\hbar}{2}$

So if you know the momentum really accurately you don't really know the position.

http://en.wikipedia.org/wiki/Uncertainty_principle

oxoiron wrote: I second that motion. Proceed to vote. All in favor of declaring seladore the winner, say "Aye."

(chorus of 'aye')

Aye.

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### Re: How many ways can you empty a glass of water?

Aye!
Or you could just wait till the end of the universe hoping to get lucky...

GBog
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### Re: How many ways can you empty a glass of water?

As far as I can see, no one has said this, so:

siphon it out.
make the water superfluid. (Yeah, I know this isn't possible)

Puck
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### Re: How many ways can you empty a glass of water?

To state that a glass has been emptied requires certainty that the water has left the glass...
But if you don't know where the water is, how can you be sure it's not in the glass?

Now you're worse off than when you started...
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Kobayashi_Maru
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### Re: How many ways can you empty a glass of water?

1. Take away all of its hopes and dreams, and alienate it from all of the other glasses of water it has ever cared about.

2. Fill it with nanobots that strip hydrogen from water to power themselves. Have them fight to the death.

meat.paste
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### Re: How many ways can you empty a glass of water?

seladore wrote:Measure its momentum really, really accurately.

Repeat if necessary.

Now THATS comedy!

I concur that this is the winning answer. Still, I'll try...

Define water to be a member of the null set. Prove the glass is empty by induction.
Huh? What?

Luthen
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### Re: How many ways can you empty a glass of water?

seladore wrote:Measure its momentum really, really accurately.

Repeat if necessary.

Aye!

Or, two others:

1. Close your eyes, the glass is now filled with a sample of dihydrogen monoxide in chemical equilibrium.

2. It doesn't matter since all atoms are mostly space anyway.

EDIOT: And it took so long for someone to notice.
Last edited by Luthen on Mon May 26, 2008 8:31 am UTC, edited 1 time in total.
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Solt
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### Re: How many ways can you empty a glass of water?

Two words: Petawatt Laser.

Actually you'd need a lot of shots because apparently these things only do about 680 Joules per shot.
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### Re: How many ways can you empty a glass of water?

Deform the cup or mug into a topologically equivalent disc or torus, respectively.
or
Assume that arguments about the very high probability that we are living in a simulation are correct.
1: Figure out how to hack the simulation.
2: Delete the water.
or
Change the water into neutrinos by either heating the water to ~100,000,000,000 kelvin (as in the heart of a supernova) or more gradually by bombarding it with cosmic rays, converting the water into exotic particles which quickly decay into neutrinos.
or
Drop a quantum black-hole through the glass.

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### Re: How many ways can you empty a glass of water?

define the water to be on the outside.
in ur beanz makin u eveel

drumbum99
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### Re: How many ways can you empty a glass of water?

Pour in some juice consentrate and mix until its nice juice =)
Then devise a way to have a stick constantly in the liquid, not touching the bottom and with some sticking out the top.
Place in a freezer.
When liquid is frozen remove from glass using stick and enjoy the juicey juicey lolly =D.

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### Re: How many ways can you empty a glass of water?

What water?

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### Re: How many ways can you empty a glass of water?

Drink it.

Dargon Cophe
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### Re: How many ways can you empty a glass of water?

Eat the glass and leave the water.
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### Re: How many ways can you empty a glass of water?

Dargon Cophe wrote:Eat the glass and leave the water.

that's not really 'emptying the glass' though.

Mettra
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### Re: How many ways can you empty a glass of water?

Puck wrote:To state that a glass has been emptied requires certainty that the water has left the glass...
But if you don't know where the water is, how can you be sure it's not in the glass?

Now you're worse off than when you started...

Then the solution is obvious. Measure the POSITION of the water very very accurately.
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### Re: How many ways can you empty a glass of water?

You can't empty a glass of water. An empty glass has no water in it and is thus not "a glass of water". So the answer to the thread title is 0.

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### Re: How many ways can you empty a glass of water?

BeetlesBane wrote:You can't empty a glass of water. An empty glass has no water in it and is thus not "a glass of water". So the answer to the thread title is 0.

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### Re: How many ways can you empty a glass of water?

Well, you know what they say about great minds.

Luthen
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### Re: How many ways can you empty a glass of water?

pseudoidiot wrote:
BeetlesBane wrote:You can't empty a glass of water. An empty glass has no water in it and is thus not "a glass of water". So the answer to the thread title is 0.

BeetlesBane wrote:Well, you know what they say about great minds.

Nothing amuses them?

EDIT: Fixed to make sense at top of page
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