Wards Essentials Trebuchet Kit, Material: High quality precision-cut Birch verner pure bond plywood, Designed to be safe and robust, Dry firings and heavy projectiles are no problem, Holes are pre drilled, Medieval weapons, engineering, and physics, Beam arm: 21in
Electric Mobility Experiment Set, 6 Different Models Can Be Built With One Chassis, Examines The Strengths And Weaknesses Of Each Solution, Compatible With All Other Horizon Kits, For Measurement, Etc, Includes fixed Steering Function At Front Of The Vehicle
Quantum Minimaglev/Starter Kit, Experience Quantum Levitation with this portable, light weight and easy to use maglev track. includes: Handheld magnetic device Round Dia.15.7in maglev track Medium enhanced levitator (Dia.1.77in) Medium levitator (Dia.1.77in) Tweezers
As an advanced programmable robotic kit, Ultimate 2.0 has more than 160 mechanical parts and modules, allows you to build 10 different configurations. Compatible with DIY platform, Arduino, and Raspberry Pi