Syphon Barometer with Celsius and Fahrenheit Scales, 41" Long Foodsafe letting students compare force ratios

letting students compare force ratios across four different radii in a single assembly

and lumbar vertebrae for spinal anatomy instruction

and gray links in a 4-compartment storage case

dropping the bulk of the measured potential across the external resistor so the coil sees only its proportional share of the signal

exposing every wire and hammer so students trace the bell's electromagnetic action

Syphon Barometer with Celsius and Fahrenheit Scales, 41" Long Foodsafe letting students compare force ratiosSyphon barometer at 41 inches tall with a 3. 5 inch wide scale in both Celsius and Fahrenheit, measuring atmospheric pressure via a fluid column mounted on a single piece frame.