Fiber Optics Voice and Data Kit, fiber optics communications, Transmit your voice or a 1kHz signal through the fiber optic cable to a fiber optic receiver, components: including PC boards; microphone; speaker and fiber optic cable, with Transmitter and receiver
Super Magnet Classroom Lab Kit, Includes: 100 magnet, 5 magnetic marbles, 7 magnetic wands, 2 metal bar magnets, 2 metal ring magnets, 2 mini horseshoe magnets, 1 large plastic horseshoe magnet, activity guide, storage box
Simple Atwood Machine, include Apparatus and 2 pulleys connected by a rod, 1.75inch plastic pulleys connected to a 3inch rod, Overall length is 8.25inch, Two pulleys are connected by a metal rod.
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