MIT scientists found that when people veer more than 13 degrees off-course in a crowd, orderly walking breaks down into ...

Engineers are exploring propulsion methods that could enable longer-distance travel ...

Neil Paine breaks down his top 12 drivers for Martinsville in tiers to see what each short-track star needs to have a big day ...

Others are more precise with their definitions. Some say that “high speed” starts at 125 mph. But others say those trains are ...