Google Talk is a simple and free way to talk with and send instant messages to your friends.
The bottom line: Ad-Aware is your best option for keeping spyware and adware under control on your PC
AVG AntiVirus FREE 2013 provides advanced protection for web surfing, emailing, and social networking. And it's packed with features, too: AVG Do Not Track, LinkScanner, Anti-Spyware, and free 24/7 phone support for the USA, UK, Ireland, and Canada.
Physion is a 2D Physics simulation software. You can use it to easily create various physical objects (polygons, gears, ropes, springs, pulleys etc) and experiment with their properties. It can be used for both educational and ... fun purposes!
Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 30 premade simulations with activities page in html-format.
ADOS is full-featured program that can help you design, analyze and optimize superior optical systems. ADOS provide an integrated software environment that enables you complete almost any task in contemporary optical design.
Mechanics is a Virtual Lab of Mechanics. An Intuitively Easy-To-Use collection of -at least- 73 interactive Mechanics simulation modules that allow the user to simulate and visualize experiments. An enlightening set of simulators.
The Magic Toy Chest Demo
The Magic Toy Chest is a Physics Based Puzzle Game for the Whole Family. It is inspired by classic retro 2D games such as "The Incredible Machine." Use 16 wacky and zany toys to create crazy sequences of events.
Ahi Sling Shoot
Blow fish out of the water in this fun casual game featuring an intuitive mouse controlled Sling Shot. Listen the the splish splashing of the water as you shoot balls into the barrel to annihilate the fish in the quickest time possible!
Ideal Gas in 3D
You can see ideal gas molecules in 3D if you use "Ideal Gas in 3D". It can help you to understand molecules motion, Boyle's law, Charles law and Maxwell distribution.
ChemLab allows users to quickly perform chemistry labs, while emphasizing the critical principles and techniques of experimental chemistry. It is ideal for distance learning, demonstrations, lab run-through, pre-lab work, hazardous or expensive labs.
Physics Virtual Laboratory, PVL
An Intuitively Easy-To-Use collection of -at least- 142 interactive Physics simulation modules that allow the user to simulate and visualize Physics experiments. Useful from High School to University.