Java Mechanics demos

How to Use

Here's a picture of a simple JavaMechanics demo. You have two balls connected together by a spring. To run it, you'd just click on start. (the picture here won't do anything but this will).

At the moment it's quite close to equilibrium, so let's try to move a ball to make it more interesting. Just click sel (for "select").

Then click ton the bigger of the two red balls. Notice it turns red when selected. Now click the move button to get it into "move mode".

Now click on the red ball (Don't try to drag it!). Then click again at a point where you want to move it to. It should now have moved:

Now when when you click the green start button, the masses will start to oscillate.

Other things work similarly. "del" deletes selected objects. "crcl" creates a another circular ball. "spr" creates a spring between the two points that you click on.

"prop" is a very useful feature. Try clicking on it. It'll open up a box letting you change and see all the properties of the ball, it's mass, position, and velocity.