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Urinal Dynamics


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#1    Arbenol

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Posted 16 October 2013 - 10:32 PM

Great to see that some scientists are actually working on problems that impact the real world.

http://meetings.aps....13/Event/202554

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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 impacting rigid and free surfaces. Our study aims to reduce undesired splashing that may result from lavatory usage. Experiments are performed at a pressure and flow rate that would be expected from healthy male subjects.\footnote{Lapides, J., Fundamentals of Urology, W.B. Saunders, Philadelphia, 1976.} For a rigid surface, the effects of stream breakup and surface impact angle on lateral and vertical droplet ejection distances are measured using high-speed photography and image processing. For free surface impact, the effects of velocity and fluid depth on droplet ejection distances are measured. Guided by our results, techniques for splash reduction are proposed.

No more returning from pub toilets with a map of Africa on your jeans.


#2    Simbi Laveau

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Posted 16 October 2013 - 11:44 PM

Oh my. This seems to be the yang to my yin post about poo pourri

Edited by Simbi Laveau, 16 October 2013 - 11:44 PM.

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#3    Arbenol

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Posted 16 October 2013 - 11:56 PM

View PostSimbi Laveau, on 16 October 2013 - 11:44 PM, said:

Oh my. This seems to be the yang to my yin post about poo pourri

Thanks. I'll have to check that out.


#4    and then

and then

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Posted 16 October 2013 - 11:58 PM

I'm not sure about the "physics" of splash but I've always heard that if one shakes it more than once they're playing with it.

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#5    DeWitz

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Posted 17 October 2013 - 12:51 AM

How did this info leak out? Although the researchers may be real whizzes, their findings seem a wee bit trivial. I'll have to see my old friend john about this. Gotta go now. . . .

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#6    Sundew

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Posted 17 October 2013 - 01:00 AM

View Postszentgyorgy, on 17 October 2013 - 12:51 AM, said:

How did this info leak out? Although the researchers may be real whizzes, their findings seem a wee bit trivial. I'll have to see my old friend john about this. Gotta go now. . . .

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#7    joc

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Posted 17 October 2013 - 01:01 AM

I always thought the sign:  We aim to please, You aim too please  ~  had taken care of that little problem...guess not.

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#8    Sundew

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Posted 17 October 2013 - 12:33 PM

View Postjoc, on 17 October 2013 - 01:01 AM, said:

I always thought the sign:  We aim to please, You aim too please  ~  had taken care of that little problem...guess not.

The version I saw was: "We aim to keep the toilets clean, you aim will help."





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