Free Fall Apparatus Economy, for determination of the gravitational constant ft gft, This kit has a wooden base, 1.1m rod and a movable electro magnet, can be moved anywhere on the rod, when the ball is released the timer is triggered and stopped one the ball his landed on the base
Green Diffraction Laser, optional accessory for the Diffraction Apparatus, Operating at 532 nm, it allows students to see and measure how diffraction patterns depend on light wavelength