Select digitized materials from the digital exhibition, Critical Metals: The Chemistry of Light.
-
Fishing with a Green Laser
- 1969
Color print advertisement for Sylvania General Telephone and Electronics Company depicting the trajectory of green laser lights reflecting off of a school of fish. The advertisement text describes the company's…
- Creator Of Work GTE Sylvania Incorporated
- Subject Nd-YAG lasers, Lasers, GTE Sylvania Incorporated, Sylvania Electric Products, Inc., Rare earths, Electrooptics, Solid-state lasers
-
We crucible tested over 50,000 phosphors last year. Any one of them might solve a problem for you.
- 1967
Black and white print advertisement for Sylvania Electric Products, Inc. The advertisement features images of a picture tube, a solid-state electroluminescent display, and a larger image of several picture tube screens…
-
How Can a Rose be a Rose be a Rose on Color TV?
- 1964
Color print advertisement for The Sylvania Color Bright 85 picture tube. The advertisement features an image of a picture tube next to a bouquet of roses, with one rose suspended in the center of the screen. The text…
-
74 items
Welsbach System of Incandescent Gas Lighting Catalog
- 1889
The Welsbach company produced this pamphlet around 1889 to promote its system of gas lighting. The brochure includes a depiction of the factory in Gloucester, New Jersey, and several illustrations of lighting system…
- Creator Of Work Welsbach Gas Light Company
- Publisher Edward Stern & Co.
- Subject Incandescent lamps, Auer v. Welsbach, Carl (Auer von Welsbach), 1858-1929, Gas-lighting, Incandescent gas-lighting, Rare earth industry, Rare earths, Welsbach Gas Light Company, Incandescent gas-lighting--Fixtures, Interior lighting, Factories
-
47 items
Set of Postcards depicting the Welsbach Factory in Gloucester, New Jersey
- 1890 – 1930
This set of postcards depicts the scenes from the Welsbach Incandescent Gas Lighting Company factory at Gloucester, New Jersey. Originally a set of 46 postcards, this collection is missing cards number 20 and 31. The…
- Contributor Welsbach Gas Light Company
- Subject Welsbach Gas Light Company, Employees, Incandescent gas-lighting, Incandescent gas-lighting--Fixtures, Lighting, Rare earth industry, Auer v. Welsbach, Carl (Auer von Welsbach), 1858-1929, Women employees, Rare earths, Machinery in the workplace, Machinery
-
This is Too Bad, Makes Night & Day Alike!
- 1901-Sep-14
This 1901 advertisement for the British branch of the Welsbach Incandescent Gas Light Company features an owl swooping through the dark into the light of a gas mantle streetlight. The owl complains that the light makes…
- Publisher Illustrated London news
- Contributor Welsbach Gas Light Company
- Subject Welsbach Gas Light Company, Auer v. Welsbach, Carl (Auer von Welsbach), 1858-1929, Incandescent gas-lighting, Incandescent gas-lighting--Fixtures, Gas-lighting, Street lighting, Light pollution, Lighting, Rare earth industry, Rare earth metals
-
2 items
Carl Auer von Welsbach Cigarette Trading Card
- 1890 – 1930
Austrian chemist Carl Auer von Welsbach (1858-1929) was a key figure in the history of rare earth elements. In 1885 he showed didymium was not an element, but an alloy of two elements that he named praseodymium and…
-
55 items
Welsbach Gas Light Company photograph album
- 1920s
Album containing 52 black and white photographs documenting various aspects of the production process at the Welsbach Gas Light Company site located along the Delaware River in Gloucester City, New Jersey. From 1888 to…
-
