A cool little demonstration of a new type of sandbox that has water flow and mountains and topography projected on it appropriately. Fertile fields spring up around lakes you dug, mountains become capped with snow, creeks are the result of running your finger through it. Developed by UC Davis, Berkeley, and ECHO, it’s to be put into a museum and used to model landforms and water effects in a fun, relatively mess-free way. 

Not the same as the sandbox in the yard, but still some awesome work. Lots of potential if the result can be ported to a program also.