At highway speeds and on race tracks, air behaves less like empty space and more like a thick, invisible fluid that can be ...

Warning: Don’t try this! The safest distance to drive behind a big rig at 55 miles per hour is 150 feet. Driving any closer is insane because it puts you in the driver’s blind spot and also does not ...

Many firefighters are accustomed to using “wet” hydrants, or hydrants supplied by a pressurized water source. For some departments, it’s so routine to fight fires and handle other incidents using ...