In short-track speed skating, packs of racers accelerate along on an oval track—and it can get hairy. Although the rules prevent shoving, skaters sometimes wipe out when passing each another on tight turns. Since the skate blades are longer and thinner than figure skating blades—and sharp as knives—short-track skaters wear cut-resistant suits and neck protectors made of Kevlar. (B. Stefanov/ Shutterstock) Read More