Fiber Optic Demonstration System Capacity_5000mL the candy-bar form letting students

the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles

Larger 100 x 12 x 15mm Alnico horseshoe steps the pole-gap geometry up from the 75mm model

Triple-parallel plastic pulley with three 50mm wheels on a steel frame with end hooks

the compact cross-section model maps pituitary

and chewing mechanisms in health coursework

Fiber Optic Demonstration System Capacity_5000mL the candy-bar form letting studentsTransmitter and receiver pair on PP3 batteries with 5m and 10m polymer fiber coils, supporting variable audio modulation 1Hz 1kHz plus a 250kHz square wave for speed of light measurement work.