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# Water heating by friction

between layers within.
 (-2) [vote for, against]

Some how make layers of water rub against each other, thereby warming it up.
 — VJW, Dec 14 2010

Water of life http://en.wikipedia.org/wiki/Whisky
[normzone, Dec 14 2010]

Mechanical equivalent of heat on Wikipedia http://en.wikipedia..._equivalent_of_heat
Joule's apparatus in which falling weight is converted into agitation in water. [baconbrain, Dec 14 2010]

You need water with a rough surface. Two waters, in fact.
 — Ian Tindale, Dec 14 2010

 — po, Dec 14 2010

Suggest John and Roger.
 — calum, Dec 14 2010

Muddy Waters, obviously.
 — FlyingToaster, Dec 14 2010

Uisge beatha (Lit. "Water of Life") is warming if applied internally.
 — 8th of 7, Dec 14 2010

Well, you can create different layers of water by using streams with different saline content but how much heat were you expecting to generate VJW?
 — DrBob, Dec 14 2010

 There was a guy who claimed to have created an over-unity device using a friction steam generator that was basically similar to a washing machine.

In the end it obviously wasn't, but it was still damn efficient. Then again, most methods of heating are pretty efficient.
 — marklar, Dec 14 2010

 // how much heat were you expecting to generate//

Any heat generated is welcome.
 — VJW, Dec 14 2010

This is done all the time: centrifugal pumps running against a dead head (big pumps can easily generate steam); blowing water across a pressure relief valve.
 — Ling, Dec 14 2010

Pretty sure this is how microwaves work? Also, I would refrain from nitpicking the whole 'water has layers' concept. Laminar flow is modeled as many layers of water, you have boundary layers in all of fluid dynamics, Newton's law of viscosity specifically revolves around the forces between these layers, etc. etc... layers in water exist until turbulence, basically. So, what [Ling] said. Also, potentially [mfd] widely known to exist.
 — daseva, Dec 14 2010

You could rub two rough pieces of ice together fast, but they'd be pretty cold to start with.
 — nineteenthly, Dec 14 2010

you could wear gloves
 — po, Dec 14 2010

No i couldn't, i have a thing about not liking gloves and they make me go all twitchy. I sometimes succeed in overcoming this if i have to do a prostate exam though.
 — nineteenthly, Dec 14 2010

Hint: Don't wear gloves, just use a machete. It's tricky to get the prostate out in one piece, but once you have, it's much easier to examine it.
 — 8th of 7, Dec 14 2010

Well it is impossible to palpate all of it that way, so i'll try to remember that in future. I'm sure it'd encourage patients to return and give me good word of mouth.
 — nineteenthly, Dec 14 2010

Maybe not, but it's an (almost) sure-fire cure for hypochondriasis. Probably, anyway.
 — lurch, Dec 14 2010

Quite possibly.
 — nineteenthly, Dec 14 2010

 Wow. I'm never one to cry "off topic", but I think we turned a corner somewhere.

You'd definitely want some water of life for that (link).
 — normzone, Dec 14 2010

 Weren't calories of heat originally fit into other measurement systems by dropping a weight connected to a stirrer in a beaker of water equipped with a thermometer? See link.

I once went swimming in a mountain stream that had been frictioning downhill over rocks and swirling in layers of turbulence, and I can assure you that it wasn't warm at all.
 — baconbrain, Dec 14 2010

Cheers, [8th]. Don't mind if I do. Sláinte!
 — Jinbish, Dec 15 2010

 [ninteenthly] //sometimes// ?!

Hope you keep your fingernails trimmed short, then.
 — mouseposture, Dec 15 2010

If he left them long, he wouldn't need a machete.
 — baconbrain, Dec 15 2010

[factoid]: This was done as an experiment in the 1800's in order to pull together the current laws of thermodynamics as we have them today.
 — RayfordSteele, Dec 15 2010

 [Mouseposture], you may be joking but as it happens, yes i do and that's something we were sternly advised to do during our training.

 — nineteenthly, Dec 15 2010

 this has survived quite long enough.

[marked-for-deletion] No idea.
 — WcW, Dec 18 2010

Having looked at [VJW]'s profile, I can say that here is a halfbaker in serious need of a dough-job.
 — MaxwellBuchanan, Dec 18 2010

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