Manual Stroboscope Persistent Visual Phenomenon Model Physics Stroboscope School Physics Experiment Teaching Equipment Instrument

supporting shaft and a 90° straight handle are installed in the center of the disc. There is a nut at the end of the shaft to prevent the disc from falling off. The disc can be rotated around the center axis by hand. It can be used for science education, student learning, presentations, etc. Purpose: Used in scientific stroboscopic observation experiments in primary and secondary schools to prove that vision is temporary. Structure: Aluminum plate with a diameter of about 200mm, matte black plastic sprayed on both sides, thickness of about 1mm. Twelve light-transmitting slits with a length of about 60 mm and a width of 1.8 mm are arranged at a central angle of 30°., Manufacturer: CWCQGH