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
Gyroscope, 7.5cm brass wheel balanced with three pairs of adjustable pivots fitted on stand, 3 cm at its rim, carefully balanced and all three pairs of pivots are adjustable, Complete fitted on stand
Advanced Ripple Tank with Projection Mirror, 21.1lbs, 24.4x15.4x9.4in, Includes: (1) Vibration Generator, (1) Wave monitor unit, (1) Projection screen, (1) Wave dippers, (1) Lever arm and support, (1) Ripple tank, (1) Projection mirror, (1) Set of footers with adjustment screws
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 500 mm focal length, Lens measures 3in diameter, 0.3 weight
Quantum Minimaglev Kit, Experience Quantum Levitation with this portable, light weight and easy to use maglev track. The kit includes: Round Dia.15.7in maglev track Medium levitator (Dia.1.77in) Plastic tweezers
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
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 1000 mm focal length, Lens measures 3in diameter, 0.1 weight