Sunday, 20 April 2014

DO YOU KNOW – 2





Why are water drops spherical?

Liquid drops tend to be ina   state of minimum surface energy which is directly related to the surface area.  

The  force,  surface tension, which is trying to hold the droplet together,  therefore tries to reduce the  surface area of the drop. 

Mathematically only a sphere has the smallest surface area for a given volume, compared to other geometric shapes .  

 Hence in the absence of external forces,   liquid drops tend to the spherical.

With Love
a.sivaramakrishnan…

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