Click somewhere to make a "wave thing". I updated it, now the edges are better and interacting with it makes a wave rather than a "plop". (you can make a "plop" by pressing space) This uses the wave equation*: d^2u/dt^2 = c^2 * d^2u/dx^2 which I actually explained here: https://scratch.mit.edu/projects/1201169515 I'm not sure how realistic it is. *Yes, its actually called the wave equation