what are the applications of surface tention
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A needle placed on water can be made to float due to the surface tension of water. Warm water is used for washing purpose as heating increases the surface area and reduces surface tension.
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Walking on water: Small insects such as the water strider can walk on water because their weight is not enough to penetrate the surface.
Floating a needle: A carefully placed small needle can be made to float on the surface of water even though it is several times as dense
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