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November 21
Events Pre-1600 *164 BCE – Judas Maccabeus, son of Mattathias of the Hasmonean family, rededicates the Temple in Jerusalem, an event that is commemorated each year by the festival of Hanukkah. (25 Kislev 3597 in the Hebrew calendar.) * 235 – Pope Anterus succeeds Pope Pontian, Pontian as the nineteenth pope. *1386 – Timur, Timur of Samarkand Timur's invasions of Georgia, captures and sacks the Kingdom of Georgia, Georgian capital of Tbilisi, taking King Bagrat V of Georgia captive. 1601–1900 *1620 – Plymouth Colony List of Mayflower passengers, settlers sign the Mayflower Compact (November 11, Old Style and New Style dates, O.S.) *1676 – The Danish astronomer Ole Rømer Rømer's determination of the speed of light, presents the first quantitative measurements of the speed of light. *1783 – In Paris, Jean-François Pilâtre de Rozier and François Laurent d'Arlandes make the first untethered hot air balloon flight. *1789 – North Caroli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
164 BCE
__NOTOC__ Year 164 BC was a year of the Roman calendar, pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Torquatus and Longinus (or, less frequently, year 590 ''Ab urbe condita''). The denomination 164 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Egypt * The Ancient Egypt, Egyptian King Ptolemy VI Philometor is expelled from Alexandria by his brother Ptolemy VIII Euergetes and flees to Roman Republic, Rome to seek support. Seleucid Empire * The Seleucid king Antiochus IV Epiphanes died while on a campaign in Tabae (or Gabae, now Isfahan) in Iran, Persia. He is succeeded by his son Antiochus V Eupator who is only nine years old. The regent for the boy is the late king's chancellor, Lysias (Syrian chancellor), Lysias, who was left in charge of Syria when Antiochus IV departed for his campaign in Persia. Lysias is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1620
Events January–March * January 7 – Ben Jonson's play ''News from the New World Discovered in the Moon'' is given its first performance, a presentation to King James I of England. In addition to dialogue about actual observations made by telescope of the Moon, the play includes a fanciful discussion of a lunar civilization a dance by the "Volatees", the lunar race. * January 22 – In France, Charles d'Albert, duc de Luynes, and his wife, the Duchess Marie de Rohan, sign a marriage contract on behalf of their one-year-old daughter to be engaged to the year-old son of Charles, Duke of Guise. * January 26 – Karan Singh II becomes the new ruler of the Kingdom of Mewar (in the modern-day state of Rajasthan in India) upon the death of his father, the Maharana Amar Singh I. * February 4 – Prince Bethlen Gabor secures a peace treaty with Ferdinand II, Holy Roman Emperor. * March 22 – King Karma Phuntsok Namgyal of Tibet dies of smallpox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-François Pilâtre De Rozier
Jean-François Pilâtre de Rozier () (30 March 1754 – 15 June 1785) was a French chemistry and physics teacher, and one of the first pioneers of aviation. He made the first manned free balloon flight with François Laurent d'Arlandes on 21 November 1783, in a Montgolfier balloon. He later died when his balloon crashed near Wimereux in the Pas-de-Calais during an attempt to fly across the English Channel. He and his companion Pierre Romain thus became the first known fatalities in an air crash. Early life He was born in Metz, the third son of Magdeleine Wilmard and Mathurin Pilastre, known as "de Rozier", a former soldier who became an innkeeper. His interests in the chemistry of drugs had been awakened in the military hospital of Metz, an important garrison town on the border of France. He made his way to Paris at the age of 18, then taught physics and chemistry at the Academy in Reims, which brought him to the attention of the Comte de Provence, brother of King Louis XVI. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1783
Events January–March * January 20 – At Versailles, Kingdom of Great Britain, Great Britain signs preliminary peace treaties with the Kingdom of France and the Kingdom of Spain. * January 23 – The Confederation Congress ratifies two October 8, 1782, treaties signed by the United States with the United Netherlands. * February 3 – American Revolutionary War: Kingdom of Great Britain, Great Britain acknowledges the independence of the United States of America. At this time, the Spanish government does not grant diplomatic recognition. * February 4 – American Revolutionary War: Great Britain formally declares that it will cease hostilities with the United States. * February 5 – 1783 Calabrian earthquakes: The first of a sequence of five earthquakes strikes Calabria, Italy (February 5–7, March 1 & 28), leaving 50,000 dead. * February 7 – The Great Siege of Gibraltar is abandoned. * February 26 – The United States Continental ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Of Light
The speed of light in vacuum, commonly denoted , is a universal physical constant exactly equal to ). It is exact because, by international agreement, a metre is defined as the length of the path travelled by light in vacuum during a time interval of second. The speed of light is invariant (physics), the same for all observers, no matter their relative velocity. It is the upper limit for the speed at which Information#Physics_and_determinacy, information, matter, or energy can travel through Space#Relativity, space. All forms of electromagnetic radiation, including visible light, travel at the speed of light. For many practical purposes, light and other electromagnetic waves will appear to propagate instantaneously, but for long distances and sensitive measurements, their finite speed has noticeable effects. Much starlight viewed on Earth is from the distant past, allowing humans to study the history of the universe by viewing distant objects. When Data communication, comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Measurement
Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events. In other words, measurement is a process of determining how large or small a physical quantity is as compared to a basic reference quantity of the same kind. The scope and application of measurement are dependent on the context and discipline. In natural sciences and engineering, measurements do not apply to nominal properties of objects or events, which is consistent with the guidelines of the International Vocabulary of Metrology (VIM) published by the International Bureau of Weights and Measures (BIPM). However, in other fields such as statistics as well as the social and behavioural sciences, measurements can have multiple levels, which would include nominal, ordinal, interval and ratio scales. Measurement is a cornerstone of trade, science, technology and quantitative research in many disciplines. Historically, many measurement syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rømer's Determination Of The Speed Of Light
Rømer's determination of the speed of light was the demonstration in 1676 that light has an apprehensible, measurable speed and so does not travel instantaneously. The discovery is usually attributed to Danish astronomer Ole Rømer,There are several alternative spellings of Rømer's surname, including "Roemer", "Rœmer", and "Römer". The Danish "Ole" is sometimes latinized to "Olaus". who was working at the Royal Observatory in Paris at the time. By timing the eclipses of Jupiter's moon Io, Rømer estimated that light would take about 22 minutes to travel a distance equal to the diameter of Earth's orbit around the Sun. Using modern orbits, this would imply a speed of light of 226,663 kilometres per second, 24.4% lower than the true value of 299,792 km/s. In his calculations Rømer used the idea and observations that the apparent time between eclipses would be greater while the Earth is moving further from Jupiter and lesser while moving closer. Rømer's theory was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ole Rømer
Ole Christensen Rømer (; 25 September 1644 – 19 September 1710) was a Danes, Danish astronomer who, in 1676, first demonstrated that light travels at a finite speed. Rømer also invented the modern thermometer showing the temperature between two fixed points, namely the points at which water respectively boils and freezes. Rømer made his discovery regarding the speed of light while working at the Paris Observatory, Royal Observatory in Paris and studying Jupiter's moon Io (moon), Io. He estimated that light takes about 11 minutes to travel from the Sun to Earth. Using today's knowledge of the Astronomical unit, Sun-Earth distance, this would amount to a speed of light of approximately 220,000 kilometers per second, compared to today's accepted value of just under 300,000 kilometers per second. In scientific literature, alternative spellings such as "Roemer", "Römer", or "Romer" are common. Biography Rømer was born on 25 September 1644 in Aarhus to merchant and skipper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers typically fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1676
Events January–March * January 29 – Feodor III of Russia, Feodor III becomes Tsar of Russia. * January 31 – Universidad de San Carlos de Guatemala, the oldest institution of higher education in Central America, is founded. * January – Six months into King Philip's War, Metacomet (King Philip), leader of the Algonquian peoples, Algonquian tribe known as the Wampanoag people, Wampanoag, travels westward to the Mohawk nation, seeking an alliance with the Mohawks against the Colonial history of the United States, English colonists of New England; his efforts in creating such an alliance are a failure. * February 10 – After the Nipmuc tribe attacks Lancaster, Massachusetts, colonist Mary Rowlandson is taken captive, and lives with the Indians until May. * February 14 – Metacomet and his Wampanoags attack Northampton, Massachusetts; meanwhile, the Massachusetts Council debates whether a wall should be erected around Boston. * February 23 & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Style And New Style Dates
Old Style (O.S.) and New Style (N.S.) indicate dating systems before and after a calendar change, respectively. Usually, they refer to the change from the Julian calendar to the Gregorian calendar as enacted in various Europe, European countries between 1582 and 1923. In England, Wales, Ireland and British America, Britain's American colonies, there were two calendar changes, both in 1752. The first adjusted the start of a new year from 25 March (Lady Day, the Feast of the Annunciation) to 1 January, a change which Scotland had made in 1600. The second discarded the Julian calendar in favour of the Gregorian calendar, skipping 11 days in the month of September to do so.. "Before 1752, parish registers, in addition to a new year heading after 24th March showing, for example '1733', had another heading at the end of the following December indicating '1733/4'. This showed where the Historical Year 1734 started even though the Civil Year 1733 continued until 24th March. ... We as h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
November 11
Events Pre-1600 * 308 – At Carnuntum, Emperor ''emeritus'' Diocletian confers with Galerius, '' Augustus'' of the East, and Maximianus, the recently returned former ''Augustus'' of the West, in an attempt to end the civil wars of the Tetrarchy. * 1028 – Constantine VIII dies, ending his uninterrupted reign as emperor or co-emperor of the Byzantine Empire of 66 years. * 1100 – Henry I of England marries Matilda of Scotland, the daughter of Malcolm III of Scotland and a direct descendant of the Saxon king Edmund Ironside; Matilda is crowned on the same day. * 1215 – The Fourth Council of the Lateran meets, defining the doctrine of transubstantiation, the process by which bread and wine are, by that doctrine, said to transform into the body and blood of Christ. * 1500 – Treaty of Granada: Louis XII of France and Ferdinand II of Aragon agree to divide the Kingdom of Naples between them. * 1572 – Tycho Brahe observes the supernova ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
