A planet whose seasons are impossible to predict

Thank to Earth's stable axial tilt, our seasons are highly predictable. But there's a planet out there called Kepler-413b that's wobbling so wildly, its seasons are in a constant state of flux. » 2/05/14 11:54am 2/05/14 11:54am

The Physics of Bullets: Why a Modern Gun Shoots 10 Times Farther Than…

Old smoothbore guns, which were loaded with bullets that looked more like balls than torpedoes, had an effective range of about sixty yards. A relatively small engineering change, which took its lead from physics, increased the range tenfold. What could make anything work that much better? » 9/19/12 3:11pm 9/19/12 3:11pm