Or, by the use of stonking great electromagnets, the tap can be dispensed with.

Water is susceptible to magnetic forces, and so the flow could be halted entirely, or by [insert percentage of your choice] flow rate.

No more of them dripping taps, or ones that are a bugger to turn on or off.

May or may not come with little levitating frog to indicate flow rate, so long as they get a free meal, they ain't bothered.

Sales plug comes with "Now with extra tetrahedrality!!!" according to one London university. Link
-- not_morrison_rm, Dec 11 2016

Water and magnetism http://www1.lsbu.ac...ectric_effects.html
London something something university, so it must be true. [not_morrison_rm, Dec 11 2016]

HELIP http://www.google.je/patents/US4765948
Neat [8th of 7, Dec 13 2016]

What is Dialectical Materialism and how is it related to plumbing ?
-- popbottle, Dec 11 2016


Ah, you're thinking of Diamante Mesopotamians.
-- not_morrison_rm, Dec 11 2016


If that stuff is true why don't MRI machines kill you?
-- Voice, Dec 12 2016


Perhaps they do.
-- pocmloc, Dec 12 2016


Ah .. they can - but they don't.

Because what they're doing is lulling you all into a false sense of security.
-- 8th of 7, Dec 12 2016


...and even if the flow doesn't change much, just think how many mpg you'll get.
-- Ling, Dec 13 2016


Call me boring, but this idea should actually work, don't ask me what the huge magnetic fields would do (realises no one has a CRT monitor or a mechanical watch these days)...oh.

Anyway, you could even do pumping water around with a kind of magnetic peristaltic effect, getting water with a high dissolved iron content would help, and would be more humane than just jamming a load of frogs into the water pipe to affect a seal*.

*No, not a seal as in a pinniped.
-- not_morrison_rm, Dec 13 2016


//water with a high dissolved iron content// I'm not at all sure that dissolved iron (which would iron ions) would make water magnetic.
-- MaxwellBuchanan, Dec 13 2016


// pumping water around with a kind of magnetic peristaltic effect //

The helical linear induction pump is Baked and WKTE for pumping liquid metals like NaK, for - amongst other applications - fission reactor cooling.

They can also be used for ferrofluids, mercury, and some molten salts.
-- 8th of 7, Dec 13 2016


// I'm not at all sure that dissolved iron (which would iron ions) would make water magnetic.

Hmm, it might or might not work, as iron is attracted by magnets, whereas water is repelled by magnets.
-- not_morrison_rm, Dec 13 2016



random, halfbakery