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Physicists probe urination 'splashback' problem
BBC ^ | 6 November 2013 Last updated at 08:17 ET | James Morgan

Posted on 11/06/2013 6:05:41 AM PST by haffast

US physicists have studied the fluid dynamics of urine "splashback" - and found hygiene tips for men and women.

Using high-speed cameras, the team filmed jets of liquid striking toilet walls and studied the resulting spray.

Splashback was low when the jets were used close up with a narrow "angle of attack", said the Brigham Young University team.

They will present their their research at an American Physical Society meeting in Pittsburgh.

"In response to harsh and repeated criticisms from our mothers and several failed relationships with women, we present the splash dynamics of a simulated human male urine stream," reads their conference abstract.

But there is a more serious side to the research.

The work is led by Prof Tadd Truscott and Randy Hurd of the "Splash Lab" at Brigham Young in Provo, Utah, who jokingly refer to themselves as "wizz kids".

"People ask me, are you serious? I tell them yes, this may involve 12-year-old humour, but it's also a real problem," Prof Truscott told BBC News.

"We've all been in disgusting toilets with puddles on the floor - these places are a breeding ground for bacteria."

For example, the detergents used to clean hospital toilets could actually increase the spray of disease-causing bacteria, by reducing the surface tension of water, according to a recent study.

Chaotic spray

One might think the physics of aiming urination had already been summarised by the formula: "get it all in the bowl". But micturation is still a messier business than it needs to be, according to the research.

snip

(Excerpt) Read more at bbc.co.uk ...


TOPICS: Culture/Society; News/Current Events
KEYWORDS: hygiene; sitzpinkler
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To: ThunderSleeps

Pee barefooted - get smart fast.


21 posted on 11/06/2013 6:25:37 AM PST by Scrambler Bob ( Concerning bo -- that refers to the president. If I capitalize it, I mean the dog.)
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To: haffast

The ADA started making places put in those urinal for midgets. If you go into a bathroom with the taller and the smaller urinals, look on the floor and you will see that the floor under the shorter urinal is always wet. I don’t know why they did this but like all Govt. ideas it doesn’t matter if it works or not, once they do it , they won’t change.


22 posted on 11/06/2013 6:25:41 AM PST by Venturer (Keep Obama and you aint seen nothing yet.)
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To: haffast

Any boy who hasn’t got the angular requirements of urination figured out by the age of 8 is a dim bulb.


23 posted on 11/06/2013 6:27:02 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
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To: haffast
You are what you drink.


24 posted on 11/06/2013 6:27:10 AM PST by Leroy S. Mort ("Don't say sh*t unless you know for sure it helps." - Raylan Givens)
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To: haffast

My hands were cold this morning !!
Yikes !


25 posted on 11/06/2013 6:27:26 AM PST by ßuddaßudd (>> F U B O << "What the hell kind of country is this if I can only hate a man if he's white?")
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To: haffast

Put your foot in the bowl and pee down your leg. No splash.


26 posted on 11/06/2013 6:27:34 AM PST by newbolt
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To: haffast

Position tree in front of body slightly to the left of the stream.


27 posted on 11/06/2013 6:28:22 AM PST by mmichaels1970
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To: haffast

This really pisses me off.


28 posted on 11/06/2013 6:29:25 AM PST by Ancient Man
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To: showme_the_Glory

And to raise the lid, I manufacture a handle - the Johnie-Lift, for the germaphobes.


29 posted on 11/06/2013 6:30:36 AM PST by PDGearhead (Obama's lack of citizenship)
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To: Scrambler Bob

Excellent training / teaching idea! LOL


30 posted on 11/06/2013 6:31:09 AM PST by ThunderSleeps (Stop obarma now! Stop the hussein - insane agenda!)
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To: haffast

Doesn’t matter how you jiggle, doesn’t matter how you dance, the last two drops gonna land in your pants.


31 posted on 11/06/2013 6:32:56 AM PST by READINABLUESTATE ("If guns cause crime, there must be something wrong with mine." -Ted Nugent)
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To: READINABLUESTATE

If you shake it more than two times you are playing with yourself.


32 posted on 11/06/2013 6:33:39 AM PST by central_va (I won't be reconstructed and I do not give a damn.)
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To: haffast

Put that bastard that’s in the white hut in range and I’ll show you spashback!


33 posted on 11/06/2013 6:35:04 AM PST by The Sons of Liberty (Who but a TYRANT shoves down another man's throat what he has exempted himself from?)
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To: PDGearhead
And to raise the lid...

It can be done with the side of your shoe.

There could be an instructional sign posted, informing women who do not understand how to operate the toilet seat.

34 posted on 11/06/2013 6:35:49 AM PST by ROCKLOBSTER ("The government" is nothing but a RAT jobs program)
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To: The Sons of Liberty

Piss on him!


35 posted on 11/06/2013 6:37:07 AM PST by The Sons of Liberty (Who but a TYRANT shoves down another man's throat what he has exempted himself from?)
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To: haffast; windcliff; stylecouncilor

My extensive studies indicate that it’s more efficient to sit at home and stand everywhere else.


36 posted on 11/06/2013 6:37:28 AM PST by onedoug
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To: central_va; Diana in Wisconsin

I used to listen to a Master Gardener named Jerry Baker on the radio....he was a huge proponent of peeing around your trees to add some nutrients.


37 posted on 11/06/2013 6:39:29 AM PST by ErnBatavia (The 0baMao Experiment: Abject Failure)
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To: haffast

Anybody who has peeing in urinals or toilets for more than a year has already figured this all out....


38 posted on 11/06/2013 6:39:35 AM PST by DouglasKC
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To: C210N
I'll presume, for now, that no taxpayer funds were involved.

Considering the college is in a county which voted 7-1 against ObaMao, I'd say the odds of any federal funds being used was slim to none. It also happens to be the most conservative city in the U.S.A. There was an interesting compare and contrast post with Detroit, the most liberal city in the U.S.A., which pointed out a huge disparity in livability despite remarkable similarities in income.

39 posted on 11/06/2013 6:39:38 AM PST by Vigilanteman (Obama: Fake black man. Fake Messiah. Fake American. How many fakes can you fit in one Zer0?)
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To: mosaicwolf

So when does my local Community College list a pee training class in the syllabus?


40 posted on 11/06/2013 6:41:39 AM PST by Buckeye McFrog
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