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The timeline of historic inventions is a chronological list of particularly significant technological inventions and their inventors, where known. [ a ] The dates in this article make frequent use of the units mya and kya , which refer to millions and thousands of years ago, respectively.
London sinks were originally shallower than Belfast sinks. [5] One plumbing guide in 1921 suggested that the Belfast sink was 38 centimetres (15 in) deep.) [ 7 ] Some believe this was because London had less access to fresh water (and thus a greater need to conserve water), but this theory is now contested.
At first, the heavier solids were channeled into ditches on the side of the farm and were covered over when full, but soon flat-bottomed tanks were employed as reservoirs for the sewage; the earliest patent was taken out by William Higgs in 1846 for "tanks or reservoirs in which the contents of sewers and drains from cities, towns and villages ...
9th century – The sine quadrant, was invented by Muhammad ibn Musa al-Khwarizmi in the 9th century at the House of Wisdom in Baghdad. [3]: 128 The other types were the universal quadrant, the horary quadrant and the astrolabe quadrant. 10th century – sea-going junk ships built in China. Late 10th century – Kamal invented in Arab world.
The broader span of aqueducts generally utilized pipes made out of lead, while the pipes within the cities themselves were often made of ceramic, wood, and leather. There were distinct differences in quality of waste management practices between the socioeconomic classes. Access to the sewer systems, as well as having plumbing and other water ...
By 1965, around 75% of U.S. breweries were using them, but in the mid-1970s, pressure from environmentalists due to litter led to the development of the non-removable tabs used today. By 1980, his company was supplying can-end machinery worldwide making over $500 million in annual revenue.
Plug for a sink. A plug in sanitation is an object that is used to close a drainage outlet firmly.. The insertion of a plug into a drainage outlet allows the container to be filled with water or other fluids.
Philip was born in Providence, Rhode Island to George Thomas Downing (1819-1903) and Serena L. Degrasse (1823-1893). [1] Thomas was a prominent businessman and abolitionist and Serena was from New York. [1]