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The year 1639 in science and technology involved some significant events.
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| 1639 in science |
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The year 1639 in science and technology involved some significant events.
1792 (MDCCXCII) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1792nd year of the Common Era (CE) and Anno Domini (AD) designations, the 792nd year of the 2nd millennium, the 92nd year of the 18th century, and the 3rd year of the 1790s decade. As of the start of 1792, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
The 1630s was a decade that began on January 1, 1630, and ended on December 31, 1639.
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The year 1914 in science and technology involved some significant events, listed below.
The year 1918 in science and technology involved some significant events, listed below.
The year 1874 in science and technology involved some significant events, listed below.
The year 1792 in science and technology involved some significant events.
The year 1796 in science and technology involved some significant events.
The year 1768 in science and technology involved some significant events.
The year 1868 in science and technology involved some significant events, listed below.
The year 1858 in science and technology involved some significant events, listed below.
The year 1710 in science and technology involved some significant events.
The year 1618 in science and technology involved some significant events.
William Crabtree (1610–1644) was an English astronomer, mathematician, and merchant from Broughton, then in the Hundred of Salford, Lancashire, England. He was one of only two people to observe and record the first predicted transit of Venus in 1639.
Events from the year 1639 in England.
Jeremiah Horrocks, sometimes given as Jeremiah Horrox, was an English astronomer. He was the first person to demonstrate that the Moon moved around the Earth in an elliptical orbit; and he was the only person to predict the transit of Venus of 1639, an event which he and his friend William Crabtree were the only two people to observe and record. Most remarkably, Horrocks correctly asserted that Jupiter was accelerating in its orbit while Saturn was slowing and interpreted this as due to mutual gravitational interaction, thereby demonstrating that gravity's actions were not limited to the Earth, Sun, and Moon.
The year 1566 in science and technology included many events, some of which are listed here.
The year 1569 in science and technology included a number of events, some of which are listed here.
The first known observations and recording of a transit of Venus were made in 1639 by the English astronomers Jeremiah Horrocks and his friend and correspondent William Crabtree. The pair made their observations independently on 4 December that year ; Horrocks from Carr House, then in the village of Much Hoole, Lancashire, and Crabtree from his home in Broughton, near Manchester.
Muzio or Mutio Oddi was an Italian mathematician and Gnomonist.