futureisfoss, 
A Round Disk Through a Smaller Square Hole (Bending Spacetime)
https://www.youtube.com/watch?v=8jE-ATI8utA
TIL after watching this video that spacetime curvature doesn't actually mean it's bending into the 4th dimension, all this time I thought otherwise 😅
#YoutubeVids #Educational #ActionLab #Science #Physics #Spacetime #Gravity