7 Modern Physics

Phosphor Glow Paper

Catalog: 
7B13.51
Location: 
File
Explore the properties of phosphorescence with this specially coated paper. Glow paper measures 8.5x11 inches.

Paddlewheel - Video

demonstration image
Catalog: 
7B35.50 B
Location: 
3_1
Video Encyclopedia :The commercial Crookes' tube with a paddlewheel.

Spectral absorption by sodium vapor - Video

demonstration image
Catalog: 
7B11.25
Location: 
3_1
Video Encyclopedia :Sodium flame looks dark when illuminated with sodium light.

Triboluminescence - Video

demonstration image
Catalog: 
7B13.05
Location: 
3_1
Video Encyclopedia :Crush wintergreen lifesavers and they give off faint flashes of light.

Fluorescence - Video

demonstration image
Catalog: 
7B13.50
Location: 
3_1
Video Encyclopedia :A collection of fluorescent materials in black light.

De Broglie Wavelength and Bohr Orbits

demonstration image
Catalog: 
7A50.32
Location: 
A sinusoidal wave is printed on transparent material that can be wound up. As the radius of the windings gets bigger the waves add constructively (line up) or destructively (not lined up) like the De Broglie wavelengths in the Bohr orbit of the hydrogen atom.

Luminescence - Video

demonstration image
Catalog: 
7B13.55
Location: 
3_1
Video Encyclopedia :A glow-in-the-dark sword exposed to black light. The covered portion does not glow as brightly.

Optical Analog of X-ray Diffraction

demonstration image
Catalog: 
7A60.24
Location: 
Ga3
Two diffraction gratings are oriented at right angles and a small lecture laser projects a pattern of dots similar to x-ray diffraction.

Frank-Hertz effect - Video

demonstration image
Catalog: 
7B30.20
Location: 
3_1
Video Encyclopedia :The curve generated by a commercial tube is shown an an oscilloscope.

Laser Diffraction of a Helix

demonstration image
Catalog: 
7A60.930
Location: 
Ga3
The X-ray diffraction pattern of DNA is simulated by the difraction pattern of a laser's light on a coiled filament of a incandescent bulb.

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