Pocket Universe, made in 1996, simulates the gravitational and thermodynamic interactions between particles, which closely models the behaviour of galaxies. On a typical desktop computer, simulations of 1000+ particles are modeled in real-time.
Mathematical models used in this program are representative only, are probably not realistic, and can not be deemed accurate for any purpose.
An optional 'thermodynamic' processing model approximates thermal pressure and friction. This causes particles to readily cluster. In this case, pressure and friction have caused these perticles to settle into a rotating sphere. You might also notice a small fraction of the system mass circling in a ring.
Where pressure and mass are balanced, and kinetic energy is sufficiently low, a structure approximating a tetrahedral lattice will form.
When approximating large diffuse gas structures, friction should be set low. Likewise, when approximating denser objects, friction should be set high.
|1. 8000 particles after a sticky first collision, on the default configuration.|
|2. After the next pass, barred-spiral distortions start. Particles near the core are hotter because of thermal friction, and some darker (non-illuminating) matter can be seen in front of the cores.|
|3. Further on, before the next collision, cores are brightening and the peripheries are dimming, so we've lowered the contrast to see the cooler material.|
|4. Later, and we've dimmed the contrast again to reveal more detail. There is more dark matter now.|
|5. The centre and bottom-right images are the same view, having only different contrast levels.|
|6. Eventually, they settle into a globular fuzz, via a disk-like structure, and burn out.|
|25 Nov 2004||Release 2.0|
Further 'New Universe' options:
|02 Sep 1999||Release 1.99|
|31 May 1996||Release 1.00|
|Multiple orthogonal views onto a gravitational universe. 16-bit.|