Two working toys. One keeps a youth football match honest about who played; the other turns today's wind at a coordinate into blades that turn.
Playing time, substitutions, goals and assists for 7-a-side youth football. Three 20-minute periods, two subs a period, and a fair share for every kid.
LiveA 3D wind turbine whose blade speed follows the real wind at a chosen coordinate — live weather in, revolutions out.
Live