Description
Universal 2-input NAND gate module with red/green LED outputs and a printed truth table
sized for student work spanning single-cell and small-battery-stack voltages
Pair of nylon-fringed metal pompons on insulated stands that fan into wide cones under mutual repulsion when charged
right-angle prism
Bicycle dynamo on a 4mm-socket base with a parallel-wired MES lamp and 2
Doppler Effect Demonstration Apparatus with 92dB Buzzer Electricity & Magnetism_Electrochemistry Universal 2-input NAND gate moduleDemonstrates 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.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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