Variable Angle Glass Prism, 40° x 40° x 100° Subcategory_Clamps and Bossheads 5 inches) with one fork

5 inches) with one fork carrying an adjustable tuning mass

Precision-machined ten-piece solid brass slotted mass set totaling 1100 grams from 10 to 500 gram pieces

the 27-part life-size dual-sex torso opens at the back to expose spinal cord alongside visceral and reproductive anatomy

Borosilicate glass rectangular convection tube at 380 by 300mm with a filling funnel

Used to demonstrate beat frequencies and sympathetic resonance

Variable Angle Glass Prism, 40° x 40° x 100° Subcategory_Clamps and Bossheads 5 inches) with one forkWider apex 40 x 40 x 100 glass prism, the broader apex producing larger deviation for direct comparison against the narrower apex members of the angle series set.