calstop
being a parent in a residential neighborhood i've become a bit more aware of cars driving in excess of the speed limit. as a wannabe inventor i keep thinking about ways to do something about it. my latest idea is smart caltrops. they're flat wafers that just sit on the road. until a speeding car tire zips over them. then they pop up into the classic spike shape that is the bane of a charging half-orc barbarian. the back tire runs over it and gets shredded. the calstop would have to quickly go back to disk shape. just in case the rear tire missed it. don't want to spike an innocent car who happens to be tailgating a speeder. hrm. anywho, i'm gonna be so rich.