As a result of various searches on the Net, I have ended up here on this fantastic site. Specifically, it was an old 2008 thread in which was closed, so in order for me to expand on such discussion I've decided to make my own thread; by which I will go a slightly different direction with. Gravity pulls everything towards the center of the earth, and centrifugal force slightly lessens the effect of gravity's pull. Due to earth's spin, of course. Now, at the equator the earth spins 1500 - 1700 mph. I'm not sure what the specific speed is because everyone uses a different number. But that is besides the point. Here's my thought experiment for you: If I fly to the equator, and weigh myself at 160 lbs, and then I go to the North Pole, will I weigh more or less than 160 lbs.? If so, by how much? The circumference of the earth at the equator is much more than the circumference of the earth close to the North pole, which would mean that the effects of the centrifugal force would be less, therefore I should weigh more right? Would this be a reasonable experiment to do, or has it already been done? Very much looking forward to your replies and insights! Thank you!