SciShow
First Kisses and Spring! (2014x44)
Date de diffusion: Mar 21, 2014
Hank explores the science behind the first kiss -- and all the kisses that come after it -- and also sets you straight about the vernal equinox, what it is, and why this year's is special!
- Première: Jan 2012
- Épisodes: 3763
- Abonnés: 2