6A Geometrical Optics

Light in a vacuum - Video

Catalog: 
6A02.10
Location: 
3_1
Video Encyclopedia :Place a flashing light in a bell jar to emphasis the point.

Silver soot ball - Video

demonstration image
Catalog: 
6A44.55
Location: 
3_1
Video Encyclopedia :A ball coated with soot appears silver in water.

Real image formation - Video

demonstration image
Catalog: 
6A60.30
Location: 
3_1
Video Encyclopedia :With a source and screen at the ends of a long optical bench, show the two positions a lens will produce an image.

Shadows - Video

Catalog: 
6A02.15A
Location: 
3_1
Video Encyclopedia :Cast shadows with a point source.

Rainbow Sticks

demonstration image
Catalog: 
6A46.26
Location: 
Fb2
Rainbow sticks are used as a model to show sunlight reflects and then refracts to make the colors and shape of the rainbow.

Lens magnification - Video

demonstration image
Catalog: 
6A60.35
Location: 
3_1
Video Encyclopedia :Place various lenses between a backlit grid and the class.

Angle of incidence, reflection - Video

Catalog: 
6A10.11
Location: 
3_1
Video Encyclopedia :Aim a beam of light at a mirror at the center of a disc, rotate the disc.

Rainbow disc - Video

demonstration image
Catalog: 
6A46.30
Location: 
3_1
Video Encyclopedia :A single beam is used with a spherical glass element on an optical board to show the path of refracted light that produces a rainbow.

Pinhole camera - Video

demonstration image
Catalog: 
6A61.20B
Location: 
3_1
Video Encyclopedia :Project a lamp filament onto a screen. Vary the distance of the screen and the size of the pinhole. Includes animation.

Deck Prism

Catalog: 
6A10.150
Location: 
Fa5
In the days before electricity, light below a vessel's deck was provided by canles, oil and kerosene lamps. All dangerous aboard a wooden ship. A clever solution for the lighting problem was the deck prism. Laid flush into the deck, small conical prisms drew light down below decks without weakening the deck planks. This solid, poured-glass prism is an exact replica of a prism taken from the Charles W. Morgan, a 19th century New England whaling ship.

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