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.

Emission spectra - Video

demonstration image
Catalog: 
7B10.10B
Location: 
3_1
Video Encyclopedia :Four spectral tubes and white light through a grating.

Six items

demonstration image
Catalog: 
7B11.15
Location: 
Eb5
Absorption of light by a medium

Flame salts - Video

demonstration image
Catalog: 
7B11.17A
Location: 
3_1
Video Encyclopedia :The colors of different flame salts are observed.

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.

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