Free particle software for mac

NeHeParticles 1.1 is designed as an impressive and unique port of the NeHe Particles OpenGL tutorial to an OSX screen saver with some small changes.

Requirements: Mac OSX 10.1 or higher

Particlets.saver 1.4 is fascinating and beautiful screensaver module for MacOS X which displays plenty of flying particles blown up by cyclones. It is based on a screensaver module for good old NeXTSTEP written by Ali Ozer and Sam Streeper.

Requirements: Mac OS X 10.3.9 or later.

High Particles is a simple but cool music visualizer for iTunes created with Quartz Composer.
There are 4 particles emitters that respond to your musical taste generating amazing effects.

Enhancements
- Code optimized in order to run in older macs.
- The four emitters now responds correctly to each interval of the spectrum.
- The CD Stop spining if no music is currently playing.

Particula Numerica in shortly Particula is an Gravitational N-Body Simulator. The software give you REAL-TIME three dimensional images for gravitationally interacting bodies, which are thought to be stars. REAL-TIME isnt meant real stellar time but you can see the MOTION of stars. The time indicated in the software is normalized time.

Particula can simulate the gravitational interaction of many bodies with certain initial conditions. You may set a simple homo-temperature spherical distribution model as an initial condition. The temperature and the number of the particles are able to be set. You can also use NEMO ASCII files as an initial data.

Particula provide you both two and three dimensional view. It shows you the overall 3D view of the particles. In 2D view you can see a trajectory of a certain particle and the temporal variation of potential energies (Kinetic/red and Potential/blue).

To update the 2D view you should click mouse with Ctrl key or the right mouse button. To change the line of sight in 3D view, just drag to rotate and shift-drag to zoom in/out.

The TINKER molecular modeling software is a complete and general package for molecular mechanics and dynamics, with some special features for biopolymers. TINKER has the ability to use any of several common parameter sets, such as Amber (ff94, ff96, ff98 and ff99), CHARMM (19 and 27), Allinger MM (MM2-1991 and MM3-2000), OPLS (OPLS-UA, OPLS-AA and OPLS-AA/L), Liam Dangs polarizable potentials, and our own AMOEBA polarizable atomic multipole force field. Parameter sets for other standard force fields such as GROMOS, UFF, ENCAD and MM4 are under consideration for future releases.

The TINKER package includes a variety of novel algorithms such as a new distance geometry metrization method that has greater speed and better sampling than standard methods, Elbers reaction path methods, several of our Potential Smoothing and Search (PSS) methods for global optimization, an efficient potential surface scanning procedure, a flexible implementation of atomic multipole-based electrostatics with explicit dipole polarizability, a selection of continuum solvation treatments including several variants of the generalized Born (GB/SA) model, an efficient truncated Newton (TNCG) local optimizer, surface areas and volumes with derivatives, a simple free energy perturbation facility, normal mode analysis, minimization in Cartesian, torsional or rigid body space, velocity Verlet stochastic dynamics, an improved spherical energy cutoff method, Particle Mesh Ewald summation for partial charges and regular Ewald for polarizable multipoles, a novel reaction field treatment of long range electrostatics, and more....