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Vacuum Diagrams is a collection of science fiction short stories by British writer Stephen Baxter. The collection connects the novels of the Xeelee Sequence and also shows the history of mankind in the Xeelee universe, and ultimately the universe. While each short story in the collection is self-contained, the stories are presented as being ...
Kenmore is an American brand of household appliances, cookware, floorcare, grills, HVAC equipment and other home items owned and licensed by Transformco, an affiliate of ESL Investments. [ 1] Previously they were a subsidiary brand of Sears Holdings, but after Sears Holdings filed for Chapter 11 bankruptcy on October 15, 2018 [ 2] they were ...
This is a list of vacuum cleaners and robot vacuum cleaner manufacturers. A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors, and optionally from other surfaces as well. The dirt is collected by either a dustbag or a rigid cartridge, which may be emptied and reused.
Richard Feynman in 1984. In theoretical physics, a Feynman diagram is a pictorial representation of the mathematical expressions describing the behavior and interaction of subatomic particles. The scheme is named after American physicist Richard Feynman, who introduced the diagrams in 1948. The interaction of subatomic particles can be complex ...
The Xeelee Sequence ( / ˈziːliː /; ZEE-lee) [ 1][ 2] [a] is a series of hard science fiction novels, novellas, and short stories written by British science fiction author Stephen Baxter. The series spans billions of years of fictional history, centering on humanity's future expansion into the universe, its intergalactic war with an enigmatic ...
Antique Maytag washing machine. The Maytag Washing Machine Company was founded in 1893 by businessman Frederick Maytag. In 1925, Maytag Washing Machine Company became Maytag, Inc. Frederick's son Elmer Henry Maytag took over as president of the company from 1926 until his own death in 1940.
Vacuum. A vacuum ( pl.: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective vacuus (neuter vacuum) meaning "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. [ 1]
In electrical engineering, a vacuum interrupter is a switch which uses electrical contacts in a vacuum. It is the core component of medium-voltage circuit-breakers, generator circuit-breakers, and high-voltage circuit-breakers. Separation of the electrical contacts results in a metal vapour arc, which is quickly extinguished.