Assorted Large Drilled Ball Set, set of 12, A 3mm hole is drilled through the center of each ball. Every set comes in a convenient plastic storage case, with a foam bottom that holds each ball firmly in place
Diffraction Grating Slides, 500lines/mm, Highly efficient embossed Holographic Optical Elements, For the direct viewing and analysis of spectra from different gas tubes and other light sources, Use in conjunction with colored film gels, Dimension: 2x2in
Phase and Group velocity Precision apparatus uses sound waves to clearly show phase and group velocity concepts. Make precise measurements of the velocity of sound in three different liquids. Three measurement techniques allow characteristics to be examined
X-ray and Tomography, Measurement of a computed tomogram with the computed tomography module Computed tomography of simple geometrical objects, Medical basics Determining absorption coefficients and Hounsfield units Determining absorption coefficients