Search results
Results from the WOW.Com Content Network
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.
1439: Printing press in Mainz, Germany: The printing press is invented in the Holy Roman Empire by Johannes Gutenberg before 1440, based on existing screw presses. The first confirmed record of a press appeared in a 1439 lawsuit against Gutenberg. [376] Mid 15th century: The Arquebus (also spelled Harquebus) is invented, possibly in Spain. [377 ...
PDF was developed to share documents, including text formatting and inline images, among computer users of disparate platforms who may not have access to mutually-compatible application software. [2] It was created by a research and development team called Camelot, [3] which was personally led by Warnock himself.
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 ...
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.
John L. Mason. John Landis Mason (c. 1832 in Vineland, New Jersey – February 26, 1902) was an American tinsmith and the patentee of the metal screw-on lid for antique fruit jars commonly known as Mason jars.
This facilitated the spread of printing to areas that were less print-centred. Compositors: Those who set the type for printing. Pressmen: the person who worked the press. This was physically labour-intensive. The earliest-known image of a European, Gutenberg-style print shop is the Dance of Death by Matthias Huss, at Lyon, 1499. This image ...
500 AD – jia xie method for resist dyeing (usually silk) using wood blocks invented in China. An upper and a lower block is made, with carved out compartments opening to the back, fitted with plugs. The cloth, usually folded a number of times, is inserted and clamped between the two blocks.