Doppler Effect Demonstration Apparatus with 92dB Buzzer Electricity & Magnetism_Electrochemistry 1uF increments at plus-or-minus 5%

1uF increments at plus-or-minus 5% on 63V

Built for medium-volume Snell's-law work

Universal 2-input NAND gate module with red/green LED outputs and a printed truth table

and 3 rods for multi-configuration study

this steel-wire test tube rack holds 24 tubes of 15-16 mm diameter in a four-by-six grid for drying and storage

Doppler Effect Demonstration Apparatus with 92dB Buzzer Electricity & Magnetism_Electrochemistry 1uF increments at plus-or-minus 5%Demonstrates the Doppler effect by swinging a 92dB buzzer on a 0. 8m tether, revealing the shift between approaching and receding frequencies in introductory wave and sound units.