Atomic clocks are the most accurate way we have to count the passing hours and seconds. What makes them so much better than digital watches and grandfather clocks?
The National Institute of Standards and Technology has unveiled a new atomic clock, and boy howdy is it accurate.
Leap day comes around every four years (give or take a few), but just what is a leap second and why does it happen? This video explains the science behind our lost time.
For decades, the world has relied on incredibly accurate atomic clocks to keep time; but atomic clocks are much more consistant than the rotation of the Earth, which varies in speed ever-so-slightly as it spins about its axis. Consequently, every few years, the time based on the Earth's rotation falls out of sync with…