Create line art. Just upload your photo, and Linify will sketch it from thousands of lines. Custom parameters let you affect how your new picture is drawn.
This is a simulation of a ripple tank. It demonstrates waves in two dimensions, including such wave phenomena as interference, diffraction (single slit, double slit, etc.), refraction, resonance, phased arrays, and the Doppler effect.
Motivation RPG is a game where your character, both inside and outside of the game, is progressed by you performing small physical activities. You get to chose which activities are presented to you, and how often.
Synfig Studio is a free and open source 2D vector graphics and timeline-based computer animation program. Illustrate characters and animate them into sprites for use in design and game projects.
Did you know there are 608 places in the world named San Francisco? This site is a geographic name server that can tell you how many places in the world share the same name.
Receive books on your Kindle through Dropbox. Just add books to your Dropbox/Apps/book-drop folder. Any new books you add will get sent to your Kindle.