Did You Know?

Did you know that gravity is weaker in North America than it is in Europe, East Asia, Australia, and North Africa?  Well, I didn't.  Apparently it's because Earth is not a perfect sphere, and its interior mass is not evenly distributed. There are slight variations of gravitational pull depending on where on Earth�s surface you are.


In fact, you can now check to see which points on the Earth�s surface have the strongest and weakest gravitational pulls with a �gravity map�, available at BBC.com. The map is a 3-dimensional model of the earth that represents the amount of gravitational pull on a specific point on the Earth as its altitude. It uses data compiled from the Gravity Field and Steady-State Ocean Circulation Explorer (GOCE).

As my friend Miley Cyrus always says, "that's pretty cool!"
Source: OMG Facts, BBC
[Image via Tree Hugger]