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The blue box recycling system (BBRS) was initially a waste management system used by Canadian municipalities to collect source separated household waste materials for the purpose of recycling. The first full-scale community wide BBRS was implemented in 1983 by the waste management contractor Ontario Total Recycling Systems Ltd. (a subsidiary of ...
Edwin Albert Link (July 26, 1904 – September 7, 1981) [1] was an American inventor, entrepreneur and pioneer in aviation, underwater archaeology, and submersibles.He invented the flight simulator, which was called the "Blue Box" or "Link Trainer".
The blue box may have had 7 oscillators, 6 for the 2 out of 6 digit code and one for the 2600 Hz tone, or 2 oscillators with switchable frequencies. The blue box was thought to be a sophisticated electronic device and sold on the black market for a typical $800–1,000 or as much as $3,500.
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Below is a list of notable defunct retailers of the United States. Across the United States, a large number of local stores and store chains that started between the 1920s and 1950s have become defunct since the late 1960s, when many chains were either consolidated or liquidated .
Title Premiere date Finale Notes Seasons 12 O'Clock High: September 18, 1964: January 13, 1967: 3 240-Robert: August 28, 1979: March 21, 1981: 2 666 Park Avenue
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Obsolete technology Replacement Still used for Bathing machine: No longer required due to changing social standards of morality Hourglass: Clock: Tasks where a fixed amount of time can be measured with a low-tech solution: Exposure time tracker in saunas (where electronics might be damaged by the heat or ultraviolet light); retro kitchen timers, board games, other short-term timers.