Utilize the simulation to learn about the effects of gravitational assists and relative velocity -Use the WASD keys to move the camera and QE to zoom (or use the blue joystick and the zoomswipe above it) -Use the SPACE key (or the bottom left button) to run/pause the simulation and modify key details -Press R (or the bottom right button) to reverse -The three buttons on the top can show key details or modify objects -Red (magnet) can set velocity, Blue (arrows) show vectors, and green (mover) moves objects -A red or green button lets you select an object. Once you select that object then drag it to your desired position and let go to set it.
Includes Mobile Mode! Use this with the icon on the top right The simulation resets its settings, so your environment will stay the same each time you boot it up. Took me a while to create it, probably about a month or two. It's simple, but easy to use. It's quite complex if you look inside, yet it's very easy if you just operate it here. Just a few buttons as well as an engine to run it all, I guess.