##attracting_particles
Categories: education, canvas, circle, lines, distance, random.
Description: There are some particles on the canvas which start attracting each other when they come close. They will start drawing lines between them as they come closer to each other. The opacity of the lines depends upon the distance between the corresponding particles. If the distance is larger, then the opacity will be lower.
Based on
http://cssdeck.com/item/602/html5-canvas-particles-web-matrix