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Everything posted by saca

  1. This is a very simple experiment that can be done by anyone at home. This science experiment is about surface tension of water and cohesive/adhesive nature of water. To do this experiment we take a coin and on one of the surface we start dropping small droplets of water. Amazing thing that we get to see here is that a lot of water accumulates on the coin surface. More than 50 to 60 drops of water drops fit on that small coin. This is amazing and it happens because of cohesive/adhesive nature of water. Water itself is cohesive in nature and when dropped on coin surface it tries to stick to coin surface due to adhesive nature. This whole effect is called surface tension of water which is high and it doesn't fall from coin very easily. For example: Watch this video for how many drops a coin can hold and you will understand easily.
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