o The Frog Blog: YouTube Saturday - Why is it Dark at Night?

Saturday, 6 October 2012

YouTube Saturday - Why is it Dark at Night?

This week's YouTube Saturday video is recommended by St. Columba's College TY pupil Bethany Shiell. It's another excellent video from Minute Physics and answers the age old question of "why is it dark at night". The answer isn't as clear cut as you think.