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If I have a bottle full of water and I turn it upside down at a small height above a flat horizontal surface while it’s cap is open, the water spreads on the surface. If I used a metal solid in place of water the solid will impart some energy to the surface while retaining its shape. What happens so that water doesn’t pile up on one spot? How loose intermolecular forces, gravity and viscosity act to make that happen?

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