Monday, July 16, 2018
As the sweat evaporates,the body cools down.Our body maintains a normal temperature.When we perform some strenuous work or exercise,the body tends to have a high body temperature. The heat goes out in two ways. The tiny blood vessels in the skin increase in size and let blood fill in them so that the heat travels out from the blood to the air.This gives us a flushed appearance.
When the body becomes hotter, the sweat gland produce a mixture of water.And waste chemicals known as sweat.
To evaporate, water uses a great amount of heat.So does not sweat. As evaporates it takes the heat rapidly from our body.
To evaporate, water uses a great amount of heat.So does not sweat. As evaporates it takes the heat rapidly from our body.
What is friction?
The resistance that one surface or object encounters when moving over another.a lubrication system which reduces friction’ It's or...
