Extended Inclined Plane Kit, Alternate Model - Visual Scientifics Science at Home_General Science Supplies this pair of 440Hz steel

this pair of 440Hz steel forks sits on pine resonance boxes (7

sized for short-reach high-current branched circuits where shielded-plug safety is required

Plated spring arm with press knob and a single contact stud

Double-convex glass lens at 75mm diameter and 150mm focal length

the basis for classic determinations of the local BH constant

Extended Inclined Plane Kit, Alternate Model - Visual Scientifics Science at Home_General Science Supplies this pair of 440Hz steelUsed in extended track inclined plane investigations, this alternate SKU kit includes the longer ramp, car, pulley, cord, support rod, and sliding protractor the parallel numbered twin of PHVSLFIP.