Liquid Level Apparatus on Wooden Base, 8.5 x 5.5" Subcategory_Electricity and Circuits the broad pole faces giving

the broad pole faces giving a flatter field profile than narrow U-shape models

letting students plot resonance against length and back-calculate the speed of sound

EGT: exhaust gas temperature sensor

Fine-gauge 24 SWG bare copper wire on a 250g reel approximating 375 feet

transmitting maximum light when their axes align and nearly extinguishing it when crossed at 90 degrees

Liquid Level Apparatus on Wooden Base, 8.5 x 5.5" Subcategory_Electricity and Circuits the broad pole faces givingVisualizes that liquid seeks its own level regardless of container shape through interconnected vessels on an 8. 5 inch wooden base with a detachable design for easy draining.