Semicircular Acrylic Block, 90 x 16mm Lab Supplies_Spring Scales Single-degree graduations and a non-magnetic

Single-degree graduations and a non-magnetic plastic case allow this 100mm tangent compass to mount on any tangent galvanometer for precise direction-and-deflection readings

and harmonic frequency relationships

showing liquid-convection currents as heat applied at one corner circulates colored dye

Used to step a class through wave superposition and beat frequencies

Open-top cylindrical dropping funnel in borosilicate glass holds 1000mL with PTFE key stopcock for large-volume controlled liquid addition

Semicircular Acrylic Block, 90 x 16mm Lab Supplies_Spring Scales Single-degree graduations and a non-magneticAcrylic semicircular block at 90 by 16mm, the half disc geometry letting light enter perpendicularly through the curved face for Snell's law and TIR ray tracing experiments.