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Air Thermometer
A thermometer is a device that measures temperature (the hotness or coldness of an object) or temperature gradient (the rates of change of temperature in space). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury-in-glass thermometer or the digital readout on an infrared model). Thermometers are widely used in technology and industry to monitor processes, in meteorology, in medicine (''medical thermometer''), and in scientific research. A standard scale While an individual thermometer is able to measure degrees of hotness, the readings on two thermometers cannot be compared unless they conform to an agreed scale. Today there is an absolute thermodynamic temperature scale. Internationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury Thermometer
Mercury most commonly refers to: * Mercury (planet), the closest planet to the Sun * Mercury (element), a chemical element * Mercury (mythology), a Roman deity Mercury or The Mercury may also refer to: Companies * Mercury (toy manufacturer), a brand of diecast toy cars manufactured in Italy * Mercury Communications, a British telecommunications firm set up in the 1980s * Mercury Corporation, an American aircraft manufacturer * Mercury Cyclecar Company, a defunct American car company * Mercury Drug, a Philippine pharmacy chain * Mercury Energy, an electricity generation and retail company in New Zealand * Mercury Filmworks, a Canadian independent animation studio * Mercury General, a multiple-line American insurance organization * Mercury Interactive, a software testing tools vendor * Mercury Marine, a manufacturer of marine engines, particularly outboard motors * Mercury Systems, a defense-related information technology company * Mercury Technologies, a financial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galen
Aelius Galenus or Claudius Galenus (; September 129 – AD), often Anglicization, anglicized as Galen () or Galen of Pergamon, was a Ancient Rome, Roman and Greeks, Greek physician, surgeon, and Philosophy, philosopher. Considered to be one of the most accomplished of all medical researchers of Ancient history, antiquity, Galen influenced the development of various scientific disciplines, including anatomy, physiology, pathology, pharmacology, and neurology, as well as philosophy and logic. The son of Aelius Nicon, a wealthy Greek architect with scholarly interests, Galen received a comprehensive education that prepared him for a successful career as a physician and philosopher. Born in the ancient city of Pergamon (present-day Bergama, Turkey), Galen traveled extensively, exposing himself to a wide variety of medical theories and discoveries before settling in Ancient Rome, Rome, where he served prominent members of Roman society and eventually was given the position of perso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinando II De' Medici, Grand Duke Of Tuscany
Ferdinando II de' Medici (14 July 1610 – 23 May 1670) was Grand Duchy of Tuscany, grand duke of Tuscany from 1621 to 1670. He was the eldest son of Cosimo II de' Medici, Grand Duke of Tuscany, Cosimo II de' Medici and Archduchess Maria Maddalena of Austria, Maria Maddalena of Austria. Remembered by his contemporaries as a man of culture and science, he actively participated in the Accademia del Cimento, the first official scientific society in Italy, formed by his younger brother, Leopoldo de' Medici. His 49-year rule was punctuated by the beginning of Tuscany's long economic decline, which was further exacerbated by his successor, Cosimo III de' Medici. He married Vittoria della Rovere, a first cousin, with whom he had two children who reached adulthood: the aforementioned Cosimo III, and Francesco Maria de' Medici, Duke of Rovere and Montefeltro, a Cardinal (Catholicism), cardinal. Reign Ferdinando was only 10 years of age when his father Cosimo II died. Because he had n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Solomon Delmedigo
Joseph Solomon Delmedigo (or Del Medigo), also known as Yashar Mi-Qandia (; 16 June 1591 – 16 October 1655), was a rabbi, author, physician, mathematician, and music theory, music theorist. Born in Heraklion, Candia, Crete, a descendant of Elia del Medigo, Joseph Solomon or Yashar Mi-Qandia is a member of Del Medigo de'Candia lineage from the Geiger (other), Geiger family of Germany that settled first in Crete and then in Italy. Eventually, he moved to Padua, Italy, studying medicine and taking classes with Galileo Galilei in astronomy. After graduating in 1613 he moved to Venice and spent a year in the company of Leon de Modena and Simone Luzzatto. From Venice he went back to Candia and from there started traveling in the near East, reaching Alexandria and Cairo. There he went into a public contest in mathematics against a local mathematician. From Egypt he moved to Istanbul, there he observed the comet of 1619. After Istanbul he wandered along the Karaite communitie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barometer
A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface Trough (meteorology), troughs, pressure systems and weather front, frontal boundaries. Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for different purposes. An altimeter is intended to be used at different levels matching the corresponding atmospheric pressure to the altitude, while a barometer is kept at the same level and measures subtle pressure changes caused by weather and elements of weather. The average atmospheric pressure on the Earth's surface varies between 940 and 1040 hPa (mbar). The average atmospheric pressure at sea level is 1013 hPa (mbar). Etymology The word ''wikt:barometer, barometer'' is derived from the Ancient Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Language
Greek (, ; , ) is an Indo-European languages, Indo-European language, constituting an independent Hellenic languages, Hellenic branch within the Indo-European language family. It is native to Greece, Cyprus, Italy (in Calabria and Salento), southern Albania, and other regions of the Balkans, Caucasus, the Black Sea coast, Asia Minor, and the Eastern Mediterranean. It has the list of languages by first written accounts, longest documented history of any Indo-European language, spanning at least 3,400 years of written records. Its writing system is the Greek alphabet, which has been used for approximately 2,800 years; previously, Greek was recorded in writing systems such as Linear B and the Cypriot syllabary. The Greek language holds a very important place in the history of the Western world. Beginning with the epics of Homer, ancient Greek literature includes many works of lasting importance in the European canon. Greek is also the language in which many of the foundational texts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Leurechon
Jean Leurechon (c. 1591 – 17 January 1670) was a French Jesuit priest, astronomer, and mathematician, known for inventing the pigeonhole principle and naming the thermometer. Life Leurechon was born in Bar-le-Duc where his father, also named Jean Leurechon, was a physician to the List of rulers of Lorraine, Duke of Lorraine. He sent Leurechon to be educated at the Jesuit university in Pont-à-Mousson but, learning of Leurechon's desire to take holy orders and wishing him instead to become a physician, brought him back to Bar-le-Duc. In 1609 Leurechon ran away from home to return to the Jesuits, and the story goes that this so enraged his mother that she took up a dagger and attempted to assassinate the head of the local Jesuit order. His father appealed to the parliament in Paris, which had jurisdiction over Pont-à-Mousson, and Leurechon was returned again to Bar-le-Duc, where the Duke ordered Leurechon to be held at the convent of the Minims (religious order), Minims in Nancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giuseppe Biancani
Giuseppe Biancani (; 8 March 1566 – 7 June 1624) was an Italian Jesuit astronomer, mathematician, and selenographer, after whom the crater Blancanus on the Moon is named. Biancani was one of the most able and respected Catholic astronomers of his day, and his main work, ''Sphaera Mundi'', was republished at least four times in the seventeenth century, 1620, 1630, 1635, and 1653. Biography Giuseppe Biancani was born in Bologna, on 8 March 1566, entered the Jesuit Order in 1592, and studied at the College of Brescia with Marco Antonio De Dominis, and at the Academy of Mathematics in the Roman College with Clavius.. Between 1596 and 1599, he lived in Padua, where he completed his studies and befriended Galileo, who had been appointed professor of mathematics at the local university in 1592. When the Jesuits were expelled from the Republic of Venice in 1606 Biancani was sent to the College of Parma, where he taught mathematics in the Jesuit College until his death on 7 June ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornelis Drebbel
Cornelis Jacobszoon Drebbel (; 1572 – 7 November 1633) was a Dutch engineer and inventor. He was the builder of the first operational submarine in 1620 and an innovator who contributed to the development of measurement and control systems, optics and chemistry. Biography Cornelis Drebbel was born in Alkmaar, Holland in an Anabaptist family in 1572. After some years at the Latin school in Alkmaar, around 1587, he attended the Academy in Haarlem, also located in North-Holland. Teachers at the Academy were Hendrik Goltzius, engraver, painter, alchemist and humanist, Karel van Mander, painter, writer, humanist and Cornelis Corneliszoon of Haarlem. Drebbel became a skilled engraver on copperplate and also took an interest in alchemy. In 1595 he married Sophia Jansdochter Goltzius, younger sister of Hendrick, and settled at Alkmaar. They had at least six children, of whom four survived. Drebbel worked initially as a painter, engraver and cartographer. But he was in constant need of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensible Heat
Sensible heat is heat exchanged by a body or thermodynamic system in which the exchange of heat changes the temperature of the body or system, and some macroscopic variables of the body or system, but leaves unchanged certain other macroscopic variables of the body or system, such as volume or pressure. Usage The term is used in contrast to a latent heat, which is the amount of heat exchanged that is hidden, meaning it occurs without change of temperature. For example, during a phase change such as the melting of ice, the temperature of the system containing the ice and the liquid is constant until all ice has melted. Latent and sensible heat are complementary terms. The sensible heat of a thermodynamic process may be calculated as the product of the body's mass (''m'') with its specific heat capacity (''c'') and the change in temperature (\Delta T): : Q_ = m c \Delta T \, . ''Sensible heat'' and ''latent heat'' are not special forms of energy. Rather, they describe exchanges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
