Mounted Color Filter Set, 7 Monochromatic + 1 Tri-Color Base_Octagonal or general beverage service at

or general beverage service at home or the lab

and a refractive-fluid vessel form the core of this 28-piece geometric optics workstation

Battery-or-mains low-frequency generator producing sine

MEETS DIN ISO STANDARDS || Conforms with DIN ISO 1773 standards for narrow neck conical flasks

Platinum resistance thermometer with fine platinum wire wound non-inductively on a mica frame and soldered to copper leads

Mounted Color Filter Set, 7 Monochromatic + 1 Tri-Color Base_Octagonal or general beverage service atEight color filters cyan, violet, magenta, red, yellow, blue, green, and tri color sit in 2 x 2 inch plastic mounts with 1 x 1. 38 inch apertures for use against a ray box source.