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1694 In Science
The year 1694 in science and technology involved some significant events. Botany * Joseph Pitton de Tournefort publishes ''Éléments de botanique ou méthode pour reconnaître les plantes''. * Rudolf Jakob Camerarius publishes ''De Sexu Plantarum Epistola'' in which he demonstrates the role of stamens and pistils in plant reproduction. Births * June 26 – Georg Brandt, Swedish chemist (died 1768) Deaths * November 29 – Marcello Malpighi, Italian physiologist (born 1628 Events January–March * January 19 – (26 Jumada al-Awwal 1037 A.H.) The reign of Salef-ud-din Muhammad Shahryar as the Mughal Emperor, Shahryar Mirza, comes to an end a little more than two months after the November 7 dea ...) References {{reflist 17th century in science 1690s in science ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemist
A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, chemical reaction rates, and other chemical properties. In Commonwealth English, pharmacists are often called chemists. Chemists use their knowledge to learn the composition and properties of unfamiliar substances, as well as to reproduce and synthesize large quantities of useful naturally occurring substances and create new artificial substances and useful processes. Chemists may specialize in any number of subdisciplines of chemistry. Materials scientists and metallurgists share much of the same education and skills with chemists. The work of chemists is often related to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1694 In Science
The year 1694 in science and technology involved some significant events. Botany * Joseph Pitton de Tournefort publishes ''Éléments de botanique ou méthode pour reconnaître les plantes''. * Rudolf Jakob Camerarius publishes ''De Sexu Plantarum Epistola'' in which he demonstrates the role of stamens and pistils in plant reproduction. Births * June 26 – Georg Brandt, Swedish chemist (died 1768) Deaths * November 29 – Marcello Malpighi, Italian physiologist (born 1628 Events January–March * January 19 – (26 Jumada al-Awwal 1037 A.H.) The reign of Salef-ud-din Muhammad Shahryar as the Mughal Emperor, Shahryar Mirza, comes to an end a little more than two months after the November 7 dea ...) References {{reflist 17th century in science 1690s in science ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1628 In Science
The year 1628 in science and technology involved some significant events. Medicine and physiology * William Harvey publishes his findings about blood circulation in ''Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus'' (published in Frankfurt). Births * March 10 – Marcello Malpighi, Italian physiologist (died 1694) * April 23 – Johann van Waveren Hudde, Dutch mathematician (died 1704) * Constantijn Huygens, Dutch statesman and telescope maker (died 1697) Deaths * June 8 – Rudolph Goclenius, German philosopher and polymath (born 1547) * Yi Su-gwang, Korean scholar-bureaucrat (born 1563 Year 1563 ( MDLXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events January–June * February 1 – Sarsa Dengel succeeds his father Menas as Emperor of Ethiopia. * Janu ...) References {{Reflist 17th century in science 1620s in science ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physiologist
Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a sub-discipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical and physical functions in a living system. According to the classes of organisms, the field can be divided into medical physiology, animal physiology, plant physiology, cell physiology, and comparative physiology. Central to physiological functioning are biophysical and biochemical processes, homeostatic control mechanisms, and communication between cells. ''Physiological state'' is the condition of normal function. In contrast, ''pathological state'' refers to abnormal conditions, including human diseases. The Nobel Prize in Physiology or Medicine is awarded by the Royal Swedish Academy of Sciences for exceptional scientific achievements in physiology related to the field of medicine. Foundations Cells Although there are difference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italy
Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical region. Italy is also considered part of Western Europe, and shares land borders with France, Switzerland, Austria, Slovenia and the enclaved microstates of Vatican City and San Marino. It has a territorial exclave in Switzerland, Campione. Italy covers an area of , with a population of over 60 million. It is the third-most populous member state of the European Union, the sixth-most populous country in Europe, and the tenth-largest country in the continent by land area. Italy's capital and largest city is Rome. Italy was the native place of many civilizations such as the Italic peoples and the Etruscans, while due to its central geographic location in Southern Europe and the Mediterranean, the country has also historically been home ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcello Malpighi
Marcello Malpighi (10 March 1628 – 30 November 1694) was an Italian biologist and physician, who is referred to as the "Founder of microscopical anatomy, histology & Father of physiology and embryology". Malpighi's name is borne by several physiological features related to the biological excretory system, such as the Malpighian corpuscles and Malpighian pyramids of the kidneys and the Malpighian tubule system of insects. The splenic lymphoid nodules are often called the "Malpighian bodies of the spleen" or Malpighian corpuscles. The botanical family Malpighiaceae is also named after him. He was the first person to see capillaries in animals, and he discovered the link between arteries and veins that had eluded William Harvey. Malpighi was one of the earliest people to observe red blood cells under a microscope, after Jan Swammerdam. His treatise ''De polypo cordis'' (1666) was important for understanding blood composition, as well as how blood clots. In it, Malpighi describ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1768 In Science
The year 1768 in science and technology involved some significant events. Biology * Steller's sea cow is hunted to extinction. * Josephus Nicolaus Laurenti becomes auctor of the class of reptiles through his ' on the poisonous function of reptiles and amphibians. He also publishes ' describing the olm, one of the first accounts of a cave animal in the western world. * Caspar Friedrich Wolff begins publication of "De Formatione Intestinarum" in the ''Mémoires'' of The Imperial Academy of Arts and Sciences (Saint Petersburg), a significant work in the science of embryology. * Lazzaro Spallanzani challenges the spontaneous generation of cellular life. Botany * Bougainvillea is first classified in Brazil by Philibert Commerçon, the botanist accompanying Louis Antoine de Bougainville's French Navy voyage of circumnavigation. * Henri-Louis Duhamel du Monceau's ''Traité des arbres fruitiers'' is published in Paris. Chemistry * March 17 – William Cookworthy is granted a patent fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swedes
Swedes ( sv, svenskar) are a North Germanic ethnic group native to the Nordic region, primarily their nation state of Sweden, who share a common ancestry, culture, history and language. They mostly inhabit Sweden and the other Nordic countries, in particular Finland where they are an officially recognized minority, with a substantial diaspora in other countries, especially the United States. Etymology The English term "Swede" has been attested in English since the late 16th century and is of Middle Dutch or Middle Low German origin. In Swedish, the term is ''svensk'', which is from the name of '' svear'' (or Swedes), the people who inhabited Svealand in eastern central Sweden, and were listed as ''Suiones'' in Tacitus' history '' Germania'' from the first century AD. The term is believed to have been derived from the Proto-Indo-European reflexive pronominal root, , as the Latin ''suus''. The word must have meant "one's own (tribesmen)". The same root and original mean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technology
Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, science, industry, communication, transportation, and daily life. Technologies include physical objects like utensils or machines and intangible tools such as software. Many technological advancements have led to societal changes. The earliest known technology is the stone tool, used in the prehistoric era, followed by fire use, which contributed to the growth of the human brain and the development of language in the Ice Age. The invention of the wheel in the Bronze Age enabled wider travel and the creation of more complex machines. Recent technological developments, including the printing press, the telephone, and the Internet have lowered communication barriers and ushered in the knowledge economy. While technology contributes to econom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Brandt
Georg Brandt (26 June 1694 – 29 April 1768) was a Swedish chemist and mineralogist who discovered cobalt (c. 1735). He was the first person to discover a metal unknown in ancient times. He is also known for exposing fraudulent alchemists operating during his lifetime. Biography Brandt was born in Riddarhyttan, Skinnskatteberg parish, Västmanland to Jurgen Brandt, a mineowner and pharmacist, and Katarina Ysing. He was professor of chemistry at Uppsala University, and died in Stockholm. He was able to show that cobalt was the source of the blue color in glass, which previously had been attributed to the bismuth found with cobalt. He died on April 29, 1768, of prostate cancer. About 1741 he wrote: "As there are six kinds of metals, so I have also shown with reliable experiments... that there are also six kinds of half-metals: a new half-metal, namely Cobalt regulusRegulus: the more or less impure mass of metal formed beneath the slag during the smelting and reducing of ores.Mer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pistil
Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the "female" portion of the flower, although rather than directly producing female gametes (i.e. egg cells), the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells. The term gynoecium is also used by botanists to refer to a cluster of archegonia and any associated modified leaves or stems present on a gametophyte shoot in mosses, liverworts, and hornworts. The corresponding terms for the male parts of those plants are clusters of antheridia within the androecium. Flowers that bear a gynoecium but no stamens are calle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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