Up Next
Back to Show
PBS Space Time
The Leap Second Explained
Season 1
Episode 21
Every once in a while we add a second onto our days. Similar to the Leap Year, this is known as the Leap Second. But, if the Leap Year already helps us account for the offset from a calendar in days, what exactly does the Leap Second do? Check out this video for the answer!
Support Provided By
13:01
Of all the possible ends of the universe, vacuum decay would be the most thorough.
13:43
It may very well be possible to communicate between worlds.
14:30
A newly discovered white dwarf may change our understanding of all cosmology.
14:05
Although elusive, the quantum spin has led to some of the deepest insights we now know.
14:01
Entropy is behind one of the most fundamental laws of physics.
12:22
The more time and space are divided, the distance between them may not exist.
13:44
The accumulation of space junk increases collisions known as the Kessler Syndrome.
11:34
If Planck relics are real, then the black holes may just be everywhere.
10:48
Quantum mechanics forbids us from measuring the universe. But we try with this principle.
