Eric Walker added Gears – Bartosz Ciechanowski to Gears

Eric Walker added r/EngineeringPorn - Sprinkler gears to Gears

Eric Walker added a number of topics and a number of links to Devices, machines, vehicles and robots, and added Devices, machines, vehicles and robots to Technology

Eric Walker added r/EngineeringPorn - Sprinkler gears and Gears – Bartosz Ciechanowski to Gears, and added Gears to Devices, machines, vehicles and robots