3 ms·
Gravity doesn't scale this way. Earth's gravitational pull (~10m/s^2) is a constant that ties distance to time, so if you want to observe the same gravitational
by q3k 1y ago
Gravity doesn't scale this way. Earth's gravitational pull (~10m/s^2) is a constant that ties distance to time, so if you want to observe the same gravitational effects in the same gravitational pull on a small dimensional scale, you need to adjust the time scale to compensate.
This is why scale model sets for practical VFX in cinema were always recorded at higher frame rates and then played back slower.
- ForHackernews 1y agoThat's only a problem if you're dealing with real gravity shooting real models in a real physical world. In a simulation, you can set G to whatever it needs to be. The acceleration defined to simulate gravity in this Fortran code is presumably already proportional to everything else defined in the simulation.
- q3k 1y agoRight, but that's more effort than just using real units in the first place.