We know you are Doc ... and then some. Me... Not anymore... a score and a half of years have passed since I last was on campus for more than a day... I'm just getting CPE these days... and even that will end forever in two or three more years... And... I ain't as good, nor as patient as these sand artists are either Sis... but I did make a sand castle or two on the beaches around this globe when I got a chance too...
That's great. I lived next to the ocean for two decades (0.25 miles away), but have never made a sand castle.
Self-sculpting sand robots are under development at MIT BBC News - Self-sculpting sand robots are under development at MIT
