NPR News: With A Leap Second, 2016 Promises To Linger Just A Little Bit Longer

With A Leap Second, 2016 Promises To Linger Just A Little Bit Longer
To keep our system of time in sync with Earth's rotation, the world's foremost timekeepers are adding an extra second to 2016. For such a small thing, the leap second has some big implications.

Đọc thêm tại NPR
at December 30, 2016 at 04:40AM
Health & Science