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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.
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.
Ancient stone tools from Ethiopia were hand-crafted by Australopithecus or related people. [1] [2] [further explanation needed] 2.3 Mya: Earliest likely control of fire and cooking, by Homo habilis [3] [4] [5] 1.76 Mya: Advanced stone tools in Kenya by Homo erectus [6] [7] 1.75 Mya – 150 kya: Varying estimates for the origin of language [8] [9]
1709 — Daniel Gabriel Fahrenheit constructed alcohol thermometers which were reproducible (i.e. two would give the same temperature) 1714 — Daniel Gabriel Fahrenheit invents the mercury -in-glass thermometer giving much greater precision (4 x that of Rømer).
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 ...
[1] [2] Over the course of its history, Crane Plumbing Corporation had moved to Montreal, Quebec and as of 2012, it was based in Stratford, Ontario, largely in a customer support role. Currently, American Standard Canada operates out of Mississauga, Ontario. Crane Plumbing also in the 1980's acquired Universal Rundle.
Iron working appears to have been invented by the Hittites in about 1200 BC, beginning the Iron Age. The secret of extracting and working iron was a key factor in the success of the Philistines. [8] [17]
1 See also. 2 Sources. 3 External links. Toggle the table of contents. ... 1718 (deriving from horizontal fraction bar, invented by Abu Bakr al-Hassar in the 12th ...