Jason McGhee has written a two-part series explaining how to implement a falling sand simulator in JavaScript.
- I-90 Mississippi River Bridge (Wikipedia)
The I-90 Mississippi River Bridge, or the Dresbach Bridge, consists of a pair of parallel bridges that traverse the Mississippi River, connecting the La Crosse, Wisconsin area to Dresbach in rural Winona County, Minnesota. The current bridge was fully opened to traffic in October 2016, replacing a previous 1967 plate girder bridge. It is part of the Interstate 90 route. There is another automobile crossing a few miles south of this bridge; the Mississippi River Bridge, a combination of two bridges, and the La Crosse West Channel Bridge, connecting La Crescent, Minnesota and La Crosse, Wisconsin.
- The code can be found by viewing source (the author mentions he left the source non-minified for easy review).