ABC Rotating Numbers and Dzen 006
If you have entered the right amount you will see a green light. If not, you will see a red light and you can enter a new number. Stay with the activity. If you get a red light, look again and select another number. Then let it go, and start looking for the next set of numbers. Just keep noticing.
You may find that the less you move your eyes the more effective you become.
A program to search for eclipses (lunar, solar, total, annular and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in four lunar calendars.
Astronomy software to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D graphics which allow you to move around within a many-body astronomical system, while watching how it evolves.
Scientific Calculator Precision 72 for scientists, engineers, teachers, and students. Calculates mathematical formulas of any length and complexity.
The AstroViewer planetarium software displays an interactive sky map for any time and any location on Earth. A print function and a 3D solar system map are available as well.
This software gives you vast information about all the elements of the modern Periodic Table. Name, atomic number, atomic weight,boiling and melting points of each element and much more. Molecular weight calculator, Periodic Table wallpaper included.