Why water is wet
Instead of saying water is wet we can say that “Wetting process” is caused by the presence of a thin liquid particles layer over a material cause us wet. The main reason behind this is wetting properties determined by a force balance between adhesive and cohesive forces over the skin. Mercury, although is a liquid, will not “wet” you because it has a strong cohesive force that doesn’t permit the molecules to get in touch with the sensory cells. When you touch water or a water wetted material part of the water molecules are transfer to your hands (a hydrophilic material) and so to the receptor cells giving the sensation of wet, this sensation can be caused however in some case of parasthesias even if there are no liquid particles.
In fact, there is no “wet receptor” on your skin but the sensation is due to the elaboration of different stimuli from tactile, pressure and temperature receptor present in your skin. Try to play with plasticine after a while handling it your hands will become hydrophobic you will no more fell the wet sensation when you wash them even if water is still “wet”!😂😂😂
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