It has been so hot recently that i would love to go swimming, but unfortunately i do not know how.  Can you educate me? 
You need to learn how to move your limbs. Coordinating your arm and leg movements to propel you through the water.
Ok.  Is there somewhere i could go to learn? Are ther swimming schools?
Swimming is a top public recreational activity. I would find aquatic centers and see if they offer lessons.
By aquatic centers you mean the ocean?  I don't live near the ocean.
No I mean public pools or fitness centers. Swimming is a low-impact activity used for exercise.
Oh, you mean like the YMCA. there is a YMCA in my town.  I will go there.  I could use a good workout.  I just play video games all day and never leave the house.
local, national, and international competitions, including every modern Summer Olympics.
Science.
Swimming relies on the nearly neutral buoyancy of the human body. On average, the body has a relative density of 0.98 compared to water, which causes the body to float. However, buoyancy varies on the basis of body composition, lung inflation, and the salinity of the water. Higher levels of body fat and saltier water both lower the relative density of the body and increase its buoyancy.
Since the human body is
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