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Author Topic: Why do wet things look darker?  (Read 1003 times)

Offline chris

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Why do wet things look darker?
« on: 18/03/2016 19:18:42 »
Water flicked onto a wall, paint that is not dry and freshly-washed hair are all darker than their dry equivalents. Why?


 

Offline Thebox

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Re: Why do wet things look darker?
« Reply #1 on: 18/03/2016 21:28:43 »
Water flicked onto a wall, paint that is not dry and freshly-washed hair are all darker than their dry equivalents. Why?

Waters more reflective than the wall so the wall becomes a blacker body that can be seen through the transparency of the water?

In simple terms the water creates a barrier?




« Last Edit: 18/03/2016 21:31:58 by Thebox »
 

Offline RD

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Re: Why do wet things look darker?
« Reply #2 on: 18/03/2016 23:57:32 »
... freshly-washed hair ... darker than ... dry ...

Water-coated-fibres will be similar to fibre-optics ...

http://www.thenakedscientists.com/HTML/experiments/exp/water-fibre-optics/

The internal-refection will repeatedly redirect some of the light back towards the fibres where some will be lost as heat. These additional reflections from fibres, (losing some light-energy each time), would not have occurred if the fibres were dry.
« Last Edit: 19/03/2016 00:17:49 by RD »
 

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Re: Why do wet things look darker?
« Reply #2 on: 18/03/2016 23:57:32 »

 

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