3-Finger Vinyl-Coated Dual-Adjustable Extension Clamp on Stainless Steel Rod, 2.3" Max Human Anatomy_Human Anatomy Charts & Models forming a resonance apparatus for

forming a resonance apparatus for determining the speed of sound through frequency and wavelength investigations

dimensioned to slot into PH0651 optical-bench holders for repeatable image-formation

this eight-fork steel set lets students hear and measure frequency

the Alnico composition resisting demagnetization for repeatable field-mapping experiments

Eight nickel-plated aluminum forks spanning C 256Hz to C 512Hz in a C-major scale

3-Finger Vinyl-Coated Dual-Adjustable Extension Clamp on Stainless Steel Rod, 2.3" Max Human Anatomy_Human Anatomy Charts & Models forming a resonance apparatus forDual screw adjustment on a heavy duty spring loaded three finger jaw opens to 2. 3 inches, mounted on a 5 inch stainless steel rod with nontoxic powder coated zinc alloy.