Polaroid is the name of a type of synthetic plastic sheet which is used to polarize light.
The original material, patented in 1929 (U.S. Patent 1,918,848) and further developed in 1932 by Edwin H. Land, consists of many microscopic crystals of iodoquinine sulfate (herapathite) embedded in a transparent nitrocellulose polymer film. The needle-like crystals are aligned during manufacture of the film by stretching or by applying electric or magnetic...
more
Read article at Wikipedia
Polaroid
Similar topics in Freebase
-
Budweiser
Budweiser (Anheuser-Busch) is an American-style lager and is one of the most popular beers in the United States. Budweiser is made with a large proportion (up to 80%) of rice in addition to hops and barley malt. Budweiser is produced in various breweries located around the United States and the... -
Delphi
Delphi (Greek Δελφοί, [ðe̞lˈfi]) (pronounce and dialectal forms) is both an archaeological site and a modern town in Greece on the south-western spur of Mount Parnassus in the valley of Phocis. Delphi was the site of the Delphic oracle, the most important oracle in the classical Greek world, and a... -
Ford Motor Company
The Ford Motor Company (NYSE: F) is an American multinational corporation based in Dearborn, Michigan, a suburb of Detroit. The automaker was founded by Henry Ford and incorporated on June 16, 1903. In addition to the Ford, Lincoln, and Mercury brands, Ford also owns Volvo Cars of Sweden, and a... -
Mobil 1
Mobil is a major American oil company which merged with Exxon in 1999 to form ExxonMobil. Today Mobil continues as a major brand name within the combined company. Its former headquarters in Fairfax, Virginia, are currently used as ExxonMobil's downstream headquarters. Following the break-up of... -
United States Navy
The United States Navy (USN) is the sea branch of the U.S. Armed Forces. It is one of the seven uniformed services of the United States. As of 31 December 2008, the U.S. Navy had about 331,682 personnel on active duty and 124,000 in the Navy Reserve. It operates 284 ships in active service and more... -
United States Army
The United States Army is the branch of the United States Military responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military and is one of seven uniformed services. The modern Army has its roots in the Continental Army which was formed on... -
United States Air Force
The United States Air Force (USAF) is the aerial warfare and space warfare branch of the U.S. armed forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on 18 September 1947 under the National Security... -
United States National Guard
The National Guard of the United States is a reserve military force composed of state National Guard militia members or units under federally recognized active or inactive armed force service for the United States. The National Guard of the United States is a joint reserve component of the United... -
Albertsons
Albertsons (officially New Albertson's, Inc.), a wholly owned subsidiary of Eden Prairie, Minnesota-based Supervalu, is a supermarket retailer that operates 529 grocery stores in Washington state, Arizona, Oregon, Idaho, Montana, Wyoming, Nevada, California, and certain parts of Utah . Supermarket... -
Eastman Kodak
Eastman Kodak Company (NYSE: EK) is a multinational US corporation which produces imaging and photographic materials and equipment. Long known for its wide range of photographic film products, Kodak is re-focusing on two major markets: digital photography and digital printing. Kodak's origins rest...