SciShow

SciShow

The Mysterious Leap Second (2012x29)


Data de estreia: 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.

  • Estreia: Jan 2012
  • Episódios: 3763
  • Seguidores: 2
  • A decorrer
  • YouTube
  • Daily