Monday, July 23, 2018

How does the blood comes out from a cut ?

We all know that when we have cut on our body , blood comes out from the cut position instantly . Have you ever wondered why and how it is ?


I am not talking about the biological reason behind this .  But it does have a reason related to physics. Let me explain.


It is very important to know that our body maintains its own pressure called body pressure for its own work . Now this particular pressure is more than the atmospheric pressure.




Now according to Bernoulli's principle , " fluids  that is  ( liquids and gases ) always flow from the regions of high pressure to regions of low pressure ".


Hence we can conclude that when there is a cut , blood is exposed to atmospheric pressure which has lower pressure compared to body pressure which is having higher pressure compared to atmospheric pressure without any assistance .


Every phenomena in our daily life is based on some or the other scientific reason .

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