something happened: either someone embedded this in an iFrame for some reason (why?!) or you don't have JS enabled
timestep:
mouse:
kinematics:
thermodynamics:
rendering mode:
heatmap mode:
heatmap gain:
enable links?
preset:
page color:
, text color:
This is basically maximally bare-bones gravity simulator, with no links, pinning, or intentional no-clipping, only heat, collision, and gravity. You can use this as a physics engine, although credit would be perferred. Of couse, this also probably works better for chromebooks. Oh, also, this is not physically accurate at all.
Note: the integration algorithm here loses energy slowly. This isn't good, but to be fair, at least it doesn't gain energy (usually)?