daps breh, I HAAAAAAAAAAATE that model and when they use it to explain spacetimeWhat a dumbass, this guy is teaching this at a school? He will only confuse the children even more because his demonstration doesn't make any sense
He is trying to explain gravity in space and why two objects gravitate towards each other by using earths gravity making two balls roll down a hill.If it was a flat surface, the balls would just stand still.
He's not even explaining anything just confusing the kids even more