The same amount of calories are burned by doing 6 sessions that are 5 minutes each of an activity and doing 1 session of that activity for 30 minutes.

The reason why golf balls have dimples on them is because it helps in the ball to move a farther distance by reducing drag.

A perfect number is a number whose divisors add up to itself such as 28: 1+2+4+7+14=28.

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