#5 | Measuring Time & The Gregorian Calendar with James, Aged 9

James, aged 9, asks the nerds all about how we track time on our planet and the Gregorian calendar. Why do we have 24 hours in a day? Why do we have 365 days in a year? Why do we have a leap year every 4 years? Why are there 60 seconds and minutes? We delve deep into the science of measuring time, from the Mayan calendar of 365 days and the Babylonians base 60 counting system to the Gregorian calendar and its complicated leap year rules! If you would like to see what the nerds look like, check us out on YouTube at: https://www.youtube.com/c/BetweenTwoNerds And for more information about Curiosity Lab, how we make kids fall in love with science, check out: https://www.curiositylab.ae