Index of /physics/phet/dev/idealgas/v3r9

 Name                                                    Last modified      Size  Description
 Parent Directory                                                             -   
 idealgas.jar                                            03-Mar-2005 16:49  454K  
 idealgas.jnlp                                           01-Mar-2005 10:35  1.4K  
 idealgas.png                                            16-Feb-2005 10:24   17K  
 lib/                                                    01-Mar-2005 10:34    -

In this version of Ideal Gas (v3r9)

Click to launch:

What's new:

Walls no longer leak.
When gravity is on, all molecules are pumped in at 300K.
Added graduations to the vertical wall.
Added counters for the number of particles on either side of the vertical wall. They aren't labeled yet because I couldn't think of a label that made sense that wasn't 'way too big. If you think of something, let me know.
Vertical wall is resizable, both width and height, if you click and drag when the mouse is over one of its edges. If the mouse is over the body of the wall, clicking and dragging moves the wall left and right.
Right floor cannot be moved up to the level of the intake port.
Added a "Diffusion" panel that has two vertical walls, one attached to the bottom of the box, and the other to the top.
Walls are highlighted when the mouse passes over them, and the cursor changes properly as a cue that the user can do. something interesting with the mouse.
Walls can't be resized below a minimum width.
Walls can't be moved too close to the walls of the box.

Features to Add

Stopwatch
Labels for histograms
Provide the ability to specify the temperature at which molecules are put into the box.
Change label on checkbox that enables/disables particle interactions
Spell out "height" onthe slice measurement tool
Smooth the pressure gauge response by adding some more slices to its data collection
If the simulation is paused, it should unpause if the pump handle is moved.

Known problems

Helium balloon can fall through the floor of the box
Number of molecules indicated in the chamber for some panels is not reset properly when the Reset button is clicked.
Histograms appear to rescale oddly, and sometimes go flat for noapparent reason