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Malu’s Law
Description
Students can investigate the relationship between the intensity of transmitted light and the angle of rotation of two polarizing filters. A graduated cartridge containing two polarizing filters allows students to observe the change in intensity as they are rotated relative to one another. The analyzer allows quantitative readings to be taken using a voltmeter at five degree intervals as the polarizing filters are rotated from minimum to maximum transmission. The output from the analyzer changes linearly with light intensity and so the resulting data can be used to verify Malus Law. Includes instructions.
Matt White Screen
Mirror, Plane
Mirror, with Base
Model of Astronomical Telescope
Model of Compound Microscope (BI STU)
Model of Galilean Telescope
Model of Terrestrial Telescope
Model Telescope
Newton’s Color Disc
Description
To demonstrate the discovery made by Newton that white light is composed of seven colors. Consisting of a pulley mounted on a metal stand, the seven colored disc is driven by gears connected to a hand driven wheel. When the colored disc rotates, the eye can’t distinguish between individual colors and perceive it as white color.