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Meldola Blue
Raphael Meldola FRS (19 July 1849 – 16 November 1915) was a British chemist and entomologist. He was Professor of Organic Chemistry in the University of London, 1912–15. Life Born in Islington, London, he was descended from Raphael Meldola (1754–1828), a theologian who was acting minister of the Spanish and Portuguese Jews in London, 1804. Meldola was the only son of Samuel Meldola; married (1886) Ella Frederica, daughter of Maurice Davis of London. He was educated in chemistry at the Royal College of Chemistry, London. There is a portrait of Meldola (oil on canvas) by Solomon J. Solomon in the Royal Society collection; also a photograph by Maull & Fox, visiting card size. Career Meldola worked in the private laboratory of John Stenhouse (FRS 1848). He was appointed Lecturer, Royal College of Science (1872) and assisted Norman Lockyer with spectroscopy. Meldola was in charge of the British Eclipse Expedition to the Nicobar Islands (1875) and was Professor of Chemist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemistry
Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and chemical compound, compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during chemical reaction, reactions with other chemical substance, substances. Chemistry also addresses the nature of chemical bonds in chemical compounds. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both Basic research, basic and Applied science, applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Pharmaceutical Society Of Great Britain
The Royal Pharmaceutical Society of Great Britain (RPSGB) existed from its founding as the Pharmaceutical Society of Great Britain in 1841 until 2010. The word "Royal" was added to its name in 1988. It was the statutory regulatory and professional body for pharmacists and pharmacy technicians in England, Scotland and Wales. In September 2010, the regulatory powers of the Society were transferred to the newly formed General Pharmaceutical Council (GPhC). The RPSGB became the Royal Pharmaceutical Society (RPS) at that time and retained its professional leadership role; the "Great Britain" part of the name was dropped for day-to-day purposes. Statutory role Before the establishment of the GPhC and the transfer of regulatory power, the primary objective of the RPSGB was to lead, regulate, develop and promote the pharmaceutical profession. All pharmacists in Great Britain had to be registered with the Society in order to practise, and the Society was unusual amongst healthcare regula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coloration Evidence For Natural Selection
Animal coloration provided important early Evidence of common descent, evidence for evolution by natural selection, at a time when little direct evidence was available. Three major functions of coloration were discovered in the second half of the 19th century, and subsequently used as scientific evidence, evidence of selection: camouflage (protective coloration); mimicry, both Batesian and Müllerian mimicry, Müllerian; and aposematism. Charles Darwin's ''On the Origin of Species'' was published in 1859, arguing from circumstantial evidence that selection by human breeders could produce change, and that since there was clearly a struggle for existence, that natural selection must be taking place. But he lacked an explanation either for genetic variation or for heredity, both essential to the theory. Many alternatives to natural selection, alternative theories were accordingly considered by biologists, threatening to undermine Darwinian evolution. Some of the first evidence wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
On The Origin Of Species
''On the Origin of Species'' (or, more completely, ''On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life'')The book's full original title was ''On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life''. In the 1872 sixth edition, "On" was omitted, so the full title is ''The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life.'' This edition is usually known as ''The Origin of Species.'' The 6th is Darwin's final edition; there were minor modifications in the text of certain subsequent issues. See Freeman, R. B. In Van Wyhe, John, ed. ''Darwin Online: On the Origin of Species'', 2002. is a work of scientific literature by Charles Darwin that is considered to be the foundation of evolutionary biology. It was published on 24 November 1859. Darwin's book introduced the scientific theory that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterflies
Butterflies are winged insects from the lepidopteran superfamily Papilionoidea, characterized by large, often brightly coloured wings that often fold together when at rest, and a conspicuous, fluttering flight. The oldest butterfly fossils have been dated to the Paleocene, about 56 million years ago, though molecular evidence suggests that they likely originated in the Cretaceous. Butterflies have a four-stage life cycle, and like other holometabolous insects they undergo complete metamorphosis. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. The caterpillars grow, sometimes very rapidly, and when fully developed, pupate in a chrysalis. When metamorphosis is complete, the pupal skin splits, the adult insect climbs out, expands its wings to dry, and flies off. Some butterflies, especially in the tropics, have several generations in a year, while others have a single generation, and a few in cold locations may take sever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mimicry
In evolutionary biology, mimicry is an evolved resemblance between an organism and another object, often an organism of another species. Mimicry may evolve between different species, or between individuals of the same species. In the simplest case, as in Batesian mimicry, a mimic resembles a model, so as to deceive a dupe, all three being of different species. A Batesian mimic, such as a hoverfly, is harmless, while its model, such as a wasp, is harmful, and is avoided by the dupe, such as an insect-eating bird. Birds hunt by sight, so the mimicry in that case is visual, but in other cases mimicry may make use of any of the senses. Most types of mimicry, including Batesian, are deceptive, as the mimics are not harmful, but Müllerian mimicry, where different harmful species resemble each other, is Honest signal, honest, as when species of wasps and of bees all have genuinely Aposematism, aposematic warning coloration. More complex types may be bipolar, involving only two speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meldola Medal
The Meldola Medal and Prize was awarded annually from 1921 to 1979 by the Chemical Society and from 1980 to 2008 by the Royal Society of Chemistry to a British chemist who was under 32 years of age for promising original investigations in chemistry (which had been published). It commemorated Raphael Meldola, President of the Maccabaeans Order of Ancient Maccabeans (also Maccabaeans) is an England, Anglo-Jewish society. The order is a friendly society established in 1891,Ilan Pappé, ''Lobbying for Zionism on Both Sides of the Atlantic'', p. 58, London, Oneworld Publications (20 ... and the Institute of Chemistry. The prize was the sum of £500 and a bronze medal. The prize was modified in 2008 and joined the Edward Harrison Memorial Prize to become the Harrison-Meldola Memorial Prizes. Winners Awardees include: * ''For 2009 onwards, see Harrison-Meldola Memorial Prizes'' * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society Of Chemistry
The Royal Society of Chemistry (RSC) is a learned society and professional association in the United Kingdom with the goal of "advancing the chemistry, chemical sciences". It was formed in 1980 from the amalgamation of the Chemical Society, the Royal Institute of Chemistry, the Faraday Society, and the Society for Analytical Chemistry with a new Royal Charter and the dual role of learned society and professional body. At its inception, the Society had a combined membership of 49,000 in the world. The headquarters of the Society are at Burlington House, Piccadilly, London. It also has offices in Thomas Graham House in Cambridge (named after Thomas Graham (chemist), Thomas Graham, the first president of the Chemical Society) where ''RSC Publishing'' is based. The Society has offices in the United States, on the campuses of The University of Pennsylvania and Drexel University, at the University City Science Center in Philadelphia, Pennsylvania, in both Beijing and Shanghai, People' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maccabaeans
Order of Ancient Maccabeans (also Maccabaeans) is an England, Anglo-Jewish society. The order is a friendly society established in 1891,Ilan Pappé, ''Lobbying for Zionism on Both Sides of the Atlantic'', p. 58, London, Oneworld Publications (2024) and registered on 8 May 1901, under the Friendly Societies Act 1875, Friendly Societies' Act, as amended 1896.Nahum Sokolow, ''History of Zionism 1600-1918'', Appendices p.358-388, Longman, Longmans, Green and Co. (1919) History The Maccabaeans were founded in 1891 by Ephraim Ish-Kishor and named after the Maccabees. The order was founded with the goal of cooperation between members and an interest in Judaism. Many members were also part of the "Lovers of Zion". As is usual for friendly societies, its members had to pay a fee of one shekel and received social and medical support. In addition to that, Jewish and "non-Jewish honorary members" alike had to profess support for the Zionist movement. The funds were used to support the settli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Chemical Industry
The Society of Chemical Industry (SCI) is a learned society set up in 1881 "to further the application of chemistry and related sciences for the public benefit". Offices The society's headquarters is in Belgrave Square, London. There are semi-independent branches in the United States, Canada and Australia. Aims The society aims to accelerate the rate of scientific innovations being commercialised by industry to benefit society. It does this through promoting collaborations between scientists and industrialists, running technical and innovation conferences, building communities across academia and industry and publishing scientific content through its journals and digital platforms. It also promotes science education. History On 21 November 1879, Lancashire chemist John Hargreaves canvassed a meeting of chemists and managers in Widnes, St Helens and Runcorn to consider the formation of a chemical society. Modelled on the successful Tyne Chemical Society already operating in New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Entomological Society
The Royal Entomological Society is a learned society devoted to the study of insects. It aims to disseminate information about insects and to improve communication between entomologists. The society was founded in 1833 as the Entomological Society of London. It had many antecedents beginning as the Society of Entomologists of London. History The foundation of the society began with a meeting of "gentlemen and friends of entomological science", held on 3 May 1833 in the British Museum convened by Nicholas Aylward Vigors with the presidency of John George Children. Those present were the Reverend Frederick William Hope, Cardale Babington, William Yarrell, John Edward Gray, James Francis Stephens, Thomas Horsfield, George Thomas Rudd and George Robert Gray. Letters of Adrian Hardy Haworth, George Bennett and John Curtis were read where they expressed their regrets to be unable to attend the meeting. They decided that a society should be created for the promotion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomological Society 1904
Entomology (from Ancient Greek ἔντομον (''éntomon''), meaning "insect", and -logy from λόγος (''lógos''), meaning "study") is the branch of zoology that focuses on insects. Those who study entomology are known as entomologists. In the past, the term ''insect'' was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids, myriapods, and crustaceans. The field is also referred to as insectology in American English, while in British English insectology implies the study of the relationships between insects and humans. Over 1.3million insect species have been described by entomology. History Entomology is rooted in nearly all human cultures from prehistoric times, primarily in the context of agriculture (especially biological control and beekeeping). The natural Roman philosopher Pliny the Elder (23–79 CE) wrote a book on the kinds of insects, while the scientist of Kufa, I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
