Neodymium is basically the strongest magnet you can get without your own metallurgical laboratory. Just one piece the size of a skateboard wheel could have 80 pounds of pulling force. That doesn’t exactly get you a hoverboard, but maybe a gravity-resistant one?
A week ago at the Winter X Games, 25-year-old Caleb Moore was in the midst of a stellar run. The three-time medalist was putting on a clinic in the finals of Snowmobile Freestyle. He was landing flips and body varials, and he seemed destined for the podium. Then everything went wrong.