This is a simulation of a ball falling on a bunch of bookshelves! A while ago, I made one of these bookshelves, and so I decided now to copy it to a whole library, and drop a meteor on it! I wish I could've shown more of the ending of the simulation, as some of the bookshelves were falling awhile after the initial collision, but scratch was taking way too long to load, so I shortened it to about 300 frames. My favorite part is when the ball completely launches the top of a bookshelf way into the air!
I used Blender 3D 2.79: blender.org/download/releases/2-79/ All of my Blender 3D simulations are on my studio: scratch.mit.edu/studios/34787653