Little Ding Wen wrote the application for his younger sisters, 3 and 5, who like to draw. He originally wrote the program for the Apple IIGS using programming language Pascal and Mac's QuickDraw APIs. As Ding Wen learned objective-C, he decided to port th
On Mars, NASA's Phoenix takes a 3D topography reading of its immediate surroundings. Showing relative elevations over short distances, the surface of Mars is very Earth-like with rolling hills, valleys, mountains and trenches.