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Invisibletiny_rabid_birds
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Registered: 11/08/05
Posts: 15,653
Loc: estados unidos Flag
someone explain this simple little phenomenom
    #8064521 - 02/24/08 01:17 PM (15 years, 11 months ago)

i shave with an electric razor and all the whiskers pile up inside of it. i regularly dump it out, as per the instructions. i usually just dump it out in the toilet, and when i do, the whiskers will very quickly spread out across the entire surface of the water. why does it do this?

it's not like it slowly and lazily spreads out. it's like within a single second it'll just spread out to cover the whole surface. it's actually kinda wild looking. i figure it has something to do with the cohesive properties of water molecules, but i can't quite understand why it spreads out that way so quickly.


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InvisibleFerris
PsychedelicJourneyman
Male

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Registered: 03/12/06
Posts: 11,529
Re: someone explain this simple little phenomenom [Re: tiny_rabid_birds]
    #8064528 - 02/24/08 01:20 PM (15 years, 11 months ago)

Quote:

tiny_rabid_birds said:
I figure it has something to do with the cohesive properties of water molecules




There, you nailed it. It's a powerful force, which is why it happens so quickly.

Surface tension



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OfflinePsy Baba
That was zen, This is Tao
I'm a teapot User Gallery


Registered: 01/30/06
Posts: 16,430
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Re: someone explain this simple little phenomenom [Re: tiny_rabid_birds]
    #8064640 - 02/24/08 01:51 PM (15 years, 11 months ago)

LOL, thanks for posting this, I have always wondered myself.


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Sit up and meditate, there's no time to contemplate.
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I have an international Hitech Psytrance project with a friend: BioChronic
I make various form of Psytrance as a solo Project Dendriform


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Offlineblacksun
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Registered: 09/02/06
Posts: 1,390
Loc: United Kingdom
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Re: someone explain this simple little phenomenom [Re: Psy Baba]
    #8064663 - 02/24/08 01:57 PM (15 years, 11 months ago)

A small experiment to try.

Get a bowl of water, get your pepper grinder and grind pepper onto the water surface, then put a tiny drop of washing up liquid into the middle of the bowl of water...

:smile:


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uarewotueat - "Libs are messy as hell, I don't know whether to take a shit or get a haircut when I'm on them!"


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InvisibleJack Albertson
bismillah rahmani rahim
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Registered: 04/14/06
Posts: 10,065
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Re: someone explain this simple little phenomenom [Re: blacksun]
    #8064669 - 02/24/08 01:59 PM (15 years, 11 months ago)

or you can put a small amount of water on a counter and sit something on top of it and watch it slide all over the place without you touching it.


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Man is timid and apologetic; he is no longer upright; he dares not say "I think," "I am," but quotes some saint or sage. He is ashamed before the blade of grass or the blowing rose.Man postpones or remembers; he does not live in the present, but with reverted eye laments the past, or, heedless of the riches that surround him, stands on tiptoe to foresee the future. He cannot be happy and strong until he too lives with nature in the present, above time
TRANSCEND



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OfflineKarmatron
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Registered: 06/11/06
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Re: someone explain this simple little phenomenom [Re: Jack Albertson]
    #8064726 - 02/24/08 02:18 PM (15 years, 11 months ago)

It's surface tension that keeps the hairs on top of the water, however surface tension doesn't cause them to spread apart evenly. My guess would be that the hairs pick up a charge either in the process of being shaved/scraped off your face, or once they're inside the trimmer. Then when they get to the surface of the water they repel each other and distribute themselves evenly across the surface - the lowest energy configuration possible for the hairs.


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Invisibletiny_rabid_birds
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Registered: 11/08/05
Posts: 15,653
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Re: someone explain this simple little phenomenom [Re: Karmatron]
    #8066170 - 02/24/08 08:28 PM (15 years, 11 months ago)

Quote:

Karmatron said:
It's surface tension that keeps the hairs on top of the water, however surface tension doesn't cause them to spread apart evenly. My guess would be that the hairs pick up a charge either in the process of being shaved/scraped off your face, or once they're inside the trimmer. Then when they get to the surface of the water they repel each other and distribute themselves evenly across the surface - the lowest energy configuration possible for the hairs.




oh, i like that answer. +5 to you.


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Invisiblesleepy
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Registered: 01/17/05
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Re: someone explain this simple little phenomenom [Re: tiny_rabid_birds]
    #8066381 - 02/24/08 09:16 PM (15 years, 11 months ago)

the reason it spreads apart is there is oil on the hair


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Offlineskydog
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Registered: 08/03/05
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Re: someone explain this simple little phenomenom [Re: tiny_rabid_birds]
    #8066402 - 02/24/08 09:20 PM (15 years, 11 months ago)

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

Quote:

The cheerio effect also refers to small objects that repel one another. Vella shows that two small floating items with identical wetting properties can repel one another if the relative density of them is of opposite sign.




:sherlock:


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