The program is still classified, so it does not exist. Just like drones bombing several countries do not really exist.

"We know from Galileo that all objects near the surface of the Earth accelerate downward at the same rate," he says. "But you also have to think about air resistance. That's why a bowling ball and a piece of paper don't fall at the same rate. You accelerate at a certain rate, but the force that's pulling you down depends on that number and your mass."

As for rides with steep drops instead of curves, heavier riders do go faster, he says.

some anti-women and pro-rape pages on Facebook... humorless feminists.