The length of a day has critical impacts on our technologies, navigation, and more.
2016 has been a long year, but it’ll be made slightly longer care of a leap second. But why do we need such things?
We will get an ‘extra’ day this year, February 29. Where do these quadrennial liberties with our calendar originate?
Keeping time isn’t easy, particularly as the Earth’s rotation is slowing down, so we need to keep adding troublesome leap seconds.