“Why is the sky dark at night?” by Minute Physics (Video)
Have you ever wondered why you look up and see a dark sky at night? The Minute Physics have created another great video explaining why the sky is dark at night. Minute Physics provides an energetic and entertaining view of old and new problems in physics.
Music by Nathaniel Schroeder
Actually, I’d like to know why a gully is dry after all the water leaves.