US$ 112.50
Set of eight steel tuning forks tuned to scientific pitch (C4 = 256 Hz) for classroom work on sound waves
showing that air resistance — not mass — accounts for differences in fall time under gravity
letting students sweep through resonance and watch amplitude peak when drive matches natural pitch
diffraction
this ray box gives students a controllable light source for reflection
Metal Spouting Cylinder Item Type_Shot Glass Set of eight steel tuningMetal spouting cylinder with multiple outlet holes at different heights, producing water jets of varying distances to show how pressure increases with depth in hydrostatics.