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Hace 4 días · Yamato-e painting of the 17th century had developed a style of outlined forms which allowed inks to be dripped on a wet surface and spread out towards the outlines—this outlining of forms was to become the dominant style of ukiyo-e. The Hikone screen may be the oldest surviving ukiyo-e work, dating to c. 1624–1644.
Hace 1 día · By the 17th century, water pump designs had improved to the point that they produced measurable vacuums, but this was not immediately understood. What was known was that suction pumps could not pull water beyond a certain height: 18 Florentine yards according to a measurement taken around 1635, or about 34 feet (10 m). [197]
Hace 1 día · During the 17th century, a short-lived "supernatural" interpretation of alchemy became popular, including support by fellows of the Royal Society: Robert Boyle and Elias Ashmole. Proponents of the supernatural interpretation of alchemy believed that the philosopher's stone might be used to summon and communicate with angels.
Hace 1 día · England in the Middle Ages concerns the history of England during the medieval period, from the end of the 5th century through to the start of the early modern period in 1485. When England emerged from the collapse of the Roman Empire, the economy was in tatters and many of the towns abandoned. After several centuries of Germanic immigration ...
Hace 1 día · This type is rather common in Africa, examples include Kongo of the 17th century, Kazembe, Kuba, the Ha, and Chagga states of the 18th century. Federations (F): Kingdoms where the external affairs were regulated by a council of elders headed by the king, who is simply primus inter pares , such as in the Ashanti Union .
Hace 5 días · Gottfried Wilhelm Leibniz [a] (1 July 1646 [ O.S. 21 June] – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat who invented calculus in addition to many other branches of mathematics and statistics. Leibniz has been called the "last universal genius" due to his knowledge and skills in ...
Hace 3 días · 19th century. An 1835 illustration of power loom weaving, as part of the Industrial Revolution. The 19th century began on 1 January 1801 (represented by the Roman numerals MDCCCI), and ended on 31 December 1900 (MCM). The 19th century was characterized by vast social upheaval.
