The Physics of Drafting in the Tour de France

Power is the most important thing in road bicycle racing like the Tour de France. If you want to move along on a bike at a constant speed, you have to use energy. There are no free rides. But there is one thing that can make a big difference in a rider’s energy...

Users Sue Juul for Addicting Them to Nicotine

Juul Labs, the San Francisco-based e-cigarette company, is under pressure from parents, schools, public health advocates, lawmakers, and the Food and Drug Administration for its popularity with younger users, who have gravitated to Juul’s discrete rechargeable vaping...