Einstein Demonstrations- Light Defraction

Loading the player ...

cover image

Download list:
cover.jpg
MSC_EinsteinLightDiffraction.flv
MSC_EinsteinLightDiffraction_x264.mp4

This podcast is part of the series: Einstein Demonstrations

Multimedia Details Title: Einstein Demonstrations- Light Defraction
Creator: McWane Science Center
Submitted By: Kathy Fournier, Informal Education Partner, Informal Education Partner
School/Organization:

McWane Science Center


Overview:

This demonstration exhibits light’s wave-like characteristics. This is half of light’s duality; the other half being light’s particle-like characteristics. Using diffraction gratings we can compare the visible parts of atomic spectra for different elements. A diffraction grating consists of a large number of equally spaced parallel slits. These slits bend light differently according to wavelength. Incandescent lights work by heating a solid piece of tungsten wire. This heating of a solid produces a variety of wavelengths, giving an impressive spread of colors when viewed with a diffraction grating. Since the other lamps are single gaseous elements, they emit only a few wavelengths of light, their individual atomic spectra.


Length: 03:36
Content Areas: Science
Alabama Course of Study Alignments and/or Professional Development Standard Alignments: