Community-built physics experiments and study materials — run an experiment live and fork it into your own studio, or read a guide someone wrote.
Seven tonnes falling at 6 m/s with fourteen metres to go, onto a shock-absorbing deck, in a sixth of Earth's gravity. Nothing scripts this landing. A node graph on the lander reads its own height and velocity every step, decides a throttle, and pushes — that graph IS the autopilot, and every number in it is a slider. Turn the gain down and watch it arrive too fast. Lengthen the contact probe and watch it cut the engine too early. Sideways is your job.
There is no 'black hole' primitive in this studio, and there never will be. This one is built out of parts you can open and read: pull everything within reach, destroy whatever touches me, count what I have swallowed, glow brighter as I feed, throw out a spray each time, and when I am full, collapse. Fourteen nodes, wired in the property editor, running live inside the solver. Open it — the button is in the inspector — and change the numbers while it runs.
