Free Lensing Software

Gravitational Lensing by Wouter Dhondt

Einstein's General Theory of Relativity demonstrates that a large mass can deform spacetime and bend the path of light. So, a very massive object, such as a cluster of galaxies can act as a gravitational lens. With this program, one can draw images to see the effect of gravitational lensing. You can easily test the effects of several parameters by changing them and redrawing the image.

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CryptoTextCE by TMG Development Ltd

CryptoTextCE is an ActiveX / COM component written in ATLCE for the PocketPC. It provides simple access to the CryptoAPI in Windows CE from embedded Visual Basic and embedded Visual C++. CryptoTextCE is a companion product to CryptoText for the desktop, and data encrypted on the PocketPC using CryptoTextCE can be decrypted on Windows NT/9x using CryptoText and vice versa.

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Cities of Earth Free 3D Screensaver by Screenomania.com

Cities of Earth is a free beautiful 3D screensaver wich shows biggest cities of our planet viewed from space. Features: Aflame Sun, stars, 3D Earth model with highlighted cities. Many of cities which positions corresponds to its real world coordinates. So it's a good educational content. Day gives place to a night and vice versa. Low CPU usage. Zoom in/zoom out.

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