We all learn that the tides are caused by the Moon pulling on the Earth's oceans. So how come there's two high tides per day but we only have one Moon?
00:00 | Introduction
00:35 | One Moon, Two High Tides?
00:54 | Is it the Sun?
01:07 | Spring Tides
01:16 | Neap Tides
01:42 | The Earth-Moon Barycentre (centre of mass)
02:45 | Planetary wobbles
03:09 | Detecting exoplanets with star wobbles
03:20 | Wobbles create centrifugal force
04:29 | A lunar day of 24h50m
04:56 | Brilliant
06:06 | Bloopers