To this day, I've never felt dumber than when elementary school me thought that 100 pounds of bowling balls would fall faster than 100 pounds of feathers. I was a fool and I'll never forget it. This video doesn't show that riddle in action but something even cooler: how things fall at the same rate inside the world's largest vacuum chamber.
Brian Cox visited NASA's Space Power Facility in Ohio which can suck out 30 tons of air in the giant chamber to remove air resistance and mimic space. It's not as cool as dropping items and watching them fall in space (nothing is) but still, it's pretty damn cool.