Weird Water Experiment!


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When the water is cooler, it evaporates. When the water is hotter, it does not evaporate. Why?

1:19

In the hotter pan the water droplets are floating on an insulating layer of steam - acting like a hovercraft

with surface tension holding the water into large extended drops.

This only works as long the steam has a way out [smaller extended drops]. If you continue to add water

the steam then boils and most of the water is back in contact with the pan instead of floating over it.

Dennis

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