Planets 0.1.13 Description:

Planets runs on Windows and Linux, and could doubtless be ported to your favorite flavor of Unix.

Planets was originally designed for kids, in particular, for a 4-year old nephew who is fascinated by astronomy.

The user interface is aimed at being simple enough that a fairly young kid can get some joy out of it. But the adults who have used it have found it to be pretty fun as well.

Planets 0.1.13 Features:

· Saving and loading of universes
· Infinite undo (erase last action) and goback (return to point in time just after last action). This allows for undoing mistakes and replaying interesting configurations.
· Traces of planet trajectories
· Two ways of dealing with planet collisions:
· merges, where the colliding planets are merged into one planet, and
· bounces, where the colliding planets are bounced off each other elastically. This itself comes in two varieties:
· force bouncing, where the force between planets is made repulsive at close quarters.
· true bouncing, where simple pool-table physics calculations are made to determine when planets collide, and compute the appropriate bounce from said collision.
· kidmode, a mode where the focus is (mostly) locked on the application, and interesting changes are initiated by merely banging on the keyboard. This mode is aimed at 1-5 year olds.
· Center-of-mass following: it is possible to follow the center of mass of a subset of the planets. Thus, if you have a sun-moon-planet system, you can have the view automatically track the moon-planet pair.
· Can display kinetic, potential and total energy of the system.
· Both the gravitational constant and the gravitational exponent can be changed.
· There is a simple control panel that makes it possible to see and change the simulation options.
· Zooming, panning, and centering on the center of mass

Planets 0.1.13 Requirements:

· Tcl version 8.3

Related searches:

gpl - gpl ghostscript - physics simulations

Planets security information

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