This app provides a pictorial representation of the periodic table of the elements.

Click on each of the elements to see details of that element. Click on Показать Категорий to see the listing of the element groups.

The app provides a quick summary of essential formulas in physics.

Finding it hard to balance chemical equations? Can you balance equations like "K4Fe(CN)6 + KMnO4 + H2SO4 → KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O"?
This app is able to balance any chemical equations from simple ones such as H2+O2=H2O to complicated ones like the above equation. It is easy to use yet powerful. Nonetheless, it is completely portable as it does not require Internet access.

Trigonometry Reference contains all the important formulas and concepts that every student needs to have it in hands.

Feed the mouse with the numbers that solve the equation in order to advance to the next level. Using tennis balls or turning the screen to the left or right will make the items either fall into the hole or feed the mouse.