3. The Dam That Slowed Earth’s Rotation
China has the Three Gorges Dam, which is the largest dam ever built in the world. The dam has the capacity to hold 39.3 cubic kilometers of water. So, how does it slow the earth’s rotation?
According to Business Insider, “Raising 39 trillion kilograms of water 175 meters above sea level will increase the Earth’s moment of inertia and thus slow its rotation.”