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3362 Topic: This might be more interesting than boasting and Name calling
Ek

Status: Bok regular
Posts: 1464
This might be more interesting than boasting and Name calling
January 09, 2013, 16:27:51

Pruney fingers give us better grip underwater

WHY do our fingers do prune impressions when soaked? It could be an adaptation that gives us better grip underwater.

Fingers and toes wrinkle in water after about 5 minutes due to the constriction of blood vessels. This reduction in volume pulls the skin inward, but as the skin's surface area cannot change, it wrinkles. This mechanism is controlled by the autonomic nervous system. When nerves to the fingertips are severed, fingers no longer wrinkle underwater.

A study in 2011 showed that wrinkles form a pattern of channels that divert water away from the fingertip – akin to rain treads on tyres. The team thought that this could aid grip.

To find out, Tom Smulders and his team at Newcastle University, UK, timed people as they transferred wet or dry objects from one box to another with and without wrinkled fingers.

With wrinkles, wet objects were transferred about 12 per cent faster than with unwrinkled fingers. The time it took to transfer dry objects was the same regardless of wrinkles.

So why aren't our digits always prune-like? "With wrinkles, less of your skin surface touches the object, so there may be issues of sensitivity," Smulders suggests.


canrugby

Status: Bok regular
Posts: 635
RE: This might be more interesting than boasting and Name calling
January 09, 2013, 19:22:49

No way. Getting told to F off, and called an idiot on the internet from internet tough guys is way more interesting then wrinkly fingers. :P

 

 

 


Sharkbok

Status: Senior player
Posts: 3594
RE: This might be more interesting than boasting and Name calling
January 09, 2013, 19:30:10

 yawn


Ek

Status: Bok regular
Posts: 1464
RE: This might be more interesting than boasting and Name calling
January 10, 2013, 07:48:03

LOL!!!


Jalapeno!

Status: Bok regular
Posts: 602
RE: This might be more interesting than boasting and Name calling
January 10, 2013, 08:51:51

What has any of this got to do with [removed]'s height in relation to Moffie's?

 

Please stick to the subject! If you want to talk about things like wrinkly fingers or rugby, go find a wrinkly finger message board or a rugby message board. This board is about Moffie being half a millimetre taller than [removed] (when he's wearing his special shoes of course).


Ek

Status: Bok regular
Posts: 1464
RE: This might be more interesting than boasting and Name calling
January 10, 2013, 08:56:53


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