Walking in dry hot sand is tricky but why walk comfortably in wet sand - Interesting Science Articles

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Friday, January 31, 2020

Walking in dry hot sand is tricky but why walk comfortably in wet sand

Walking in dry hot sand is tricky but why walk comfortably in wet sand?

An interesting energy exists in the particles of any object. This is called cohesive force.
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And the attraction between two separate objects is called an adhesive force.
Now the adhesive force of sand and water is quite weak. Therefore, the benefit of walking in wet sand is because the wet sand in the water becomes a very hard lining under the feet.
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But as the sand warms, its cohesive force is reduced. So when we walk, it goes backwards.

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