SciShow
The Mysterious Leap Second (2012x29)
Exibido em:: Fev 29, 2012
Leap Day's got nothing on the Leap SECOND! Hank explains why a second is being added to 2012 and why some are upset about it.
- Estreou: Jan 2012
- Episódios: 3678
- Seguidores: 2
- Em exibição
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