Diffraction Grating Holder for Standard Spectrometer Entomology & Zoology_Zoology Charts & Models supplying precise low-resistance values for

supplying precise low-resistance values for Wheatstone-bridge and Ohm's-law investigations

Walks students through four-stroke diesel operation on a 16-inch hand-cranked model

Used to extend the curvature-vs-charge-density study to larger geometries

packaged in a wooden storage box

the low-mass vessel minimizing heat absorption during specific-heat experiments

Diffraction Grating Holder for Standard Spectrometer Entomology & Zoology_Zoology Charts & Models supplying precise low-resistance values forMetal holder with two 0. 125 inch mounting holes spaced 1. 5 inches apart, a pair of 1. 25 inch rods, and a spring loaded clip to grip a diffraction grating on the PH0619 spectrometer.