+rep Boner physics Lesson :
If every male on earth got a boner at the same time, the earth's rotation would slow down. Assume there are about 3.8 billion males, with an average D ick height of about 80 cm off the ground. The average D ick weighs about 100 grams.

That's a combined mass of 380,000,000 kg of C ock

Now we must make an approximation. For simplicity's sake, let us assume the C ocks are all evenly lined up in a ring around the equator. The equation for moment of inertia of a ring is I = mass*radius^2. The radius of earth is about 6.371 million meters. Therefore the radius of the approximated D ick ring is 6,371,000 + 0.80 = 6,371,000.8 meters.