You’ve only brushed the surface of all the interesting things you can do with a good physics engine in a 3D environment. In this assignment, bring your knowledge into the real world by creating a 3D simulation of a simple action that you could do in real life. It could be a ticking metronome, a cuckoo clock, a bouncing ball, the springs on a couch, or a doughnut dropping into the fryer. Choose one element of an animated real-life object and re-create it in A-Frame as realistically as possible.