This Screensaver simulates planets under gravity. Small objects move along their orbit, sometimes captured by the biggerr ones. Number of moving objects and strength of gravity can be adjusted with the control panel. More…

This programm runs on each java-handy and gives you the orientation using the principle of the sun compass. The handy calculates the position of the sun for the current time and location and shows it on the handydisplay together with a compass card. Instructions: Hold handy horizontally and turn it so that the circle with the X inside points to the sun. The display shows the direction with +/-3 degrees deviation. More…

This Math-Trainer runs on every java-Handy and trains mental arithmetic. The handy asks arithmetic problems and the faster you are the more points you get. Twelve types of the first rules of arithmetic you can choose from. Scores are stored in handy. It can also calculate the prima factors or GCD of given numbers. More…