Hollow Glass Prism with Stopper, 2 x 2" Light & Optics_Color 5V motor-generator on a 6

5V motor-generator on a 6 by 4 by 2-inch base with 4mm socket terminals and a 15mm V-pulley

sized for fine-print reading and convex-lens image-formation work in introductory optics

photo displays

sized for repeated student use on solid-core and stranded wire ahead of crocodile-clip and terminal-block work

Larger-spark 100mm induction coil from a 6-12V DC input with adjustable vibrator and base-mounted suppression capacitors

Hollow Glass Prism with Stopper, 2 x 2" Light & Optics_Color 5V motor-generator on a 6Built for medium volume Snell's law work, a 2 by 2 inch hollow glass prism with stopper holds more liquid than the 1. 5 inch sibling for refraction index investigations across multiple media.