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Long Arm Of The Law Physics Home robotics, bubeleh. Build a working hydraulic arm with this excellent 66-piece kit from Pathfinders' Simple Machine series. Structure is die-cut plywood and the kit includes tubing, (3) syringes and glue. You'll need a

Description

This robotic arm is an easy to make 3-dimensional model that grabs, lifts items horizontally, and can turn very close to 90 degrees! Designed to be used alone (with a nice syringe holder), or in a group - each person using one syringe. A great way to learn about Robotics, Levers and Simple Machines, Fluid dynamics, Engineering, Invention, Design and Technology - or just moving things around the house. (Small things, mind you - no dogs or cats, please.) The finished arm will be approx 13-1/2" tall and will reach out over 16" and rotate 90 on an 8-5/8' x 6-7/8" base. Comes with a 12-page manual and uses water to simulate hydraulic fluid. For ages 8+.