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  2. Sink - Wikipedia

    en.wikipedia.org/wiki/Sink

    London sinks were originally shallower than Belfast sinks. [4] One plumbing guide in 1921 suggested that the Belfast sink was 38 centimetres (15 in) deep.) [ 6 ] 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.

  3. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    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 ...

  4. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_historic...

    The timeline of historic inventions is a chronological list of particularly ... Advanced scraping tools were found in Morocco dating to 90–120,000 years ago, they ...

  5. History of water filters - Wikipedia

    en.wikipedia.org/wiki/History_of_water_filters

    The Metropolitan Commission of Sewers was formed at the same time, water filtration was adopted throughout the country, and new water intakes on the Thames were established above Teddington Lock. Automatic pressure filters, where the water is forced under pressure through the filtration system, were innovated in 1899 in England. [9]

  6. Timeline of electrical and electronic engineering - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_electrical_and...

    1861: Grade school teacher Philipp Reis presents his telephone in Frankfurt, inventing the loudspeaker as a by-product. 1867: French poet and philosopher Charles Cros (1842–1888) presents the construction principle of a phonograph in his 'paréophone', which turned out not to be a commercial success at the time.

  7. Timeline - Wikipedia

    en.wikipedia.org/wiki/Timeline

    Number timelines, the labels are numbers, commonly line graphs; Interactive, clickable, zoomable; Video timelines; There are many methods to visualize timelines. Historically, timelines were static images and were generally drawn or printed on paper. Timelines relied heavily on graphic design, and the ability of the artist to visualize the data.

  8. Kitchen - Wikipedia

    en.wikipedia.org/wiki/Kitchen

    Similar design principles were employed by Schütte-Lihotzky for her famous Frankfurt kitchen, designed for Ernst May's Römerstadt, a social housing project in Frankfurt, in 1927. While this "work kitchen" and variants derived from it were a great success for tenement buildings, homeowners had different demands and did not want to be ...

  9. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    [1] [2] [3] Spreadsheets were developed as computerized analogs of paper accounting worksheets. [4] The program operates on data entered in cells of a table. Each cell may contain either numeric or text data, or the results of formulas that automatically calculate and display a value based on the contents of other cells.

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