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Sir George Darwin
Sir George Howard Darwin (9 July 1845 – 7 December 1912) was an English barrister and astronomer, the second son and fifth child of Charles Darwin and Emma Darwin. He is known for the harmonic analysis of the theory of tides. The Darwin symbols for tides are named after him. Biography George H. Darwin was born 9 July 1845 at Down House, Kent, the fifth child of biologist Charles Darwin and Emma Darwin. From the age of 11 he studied under Charles Pritchard at Clapham Grammar School, and entered St John's College, Cambridge, in 1863, though he soon moved to Trinity College, where his tutor was Edward John Routh. He graduated BA in mathematics in 1868 (as second wrangler), when he was also placed second for the Smith's Prize and was appointed to a college fellowship. He became M.A. in 1871. He was admitted to the bar in 1872, but returned to science. George Darwin conducted studies into the prevalence and health outcomes of contemporary first-cousin marriages (such as his p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Down House
Down House is the former home of the English Natural history, naturalist Charles Darwin and his family. It was in this house and garden that Darwin worked on his theory of evolution by natural selection, which he had conceived in London before moving to Down. The Listed building, Grade I listed building stands in Luxted Road, south of Downe, a village south-east of London's Charing Cross. The village was known as Down when Darwin moved there in 1842. In his day, Downe was a parish in History of Kent, Kent. Since 1965, it has lain within the London Borough of Bromley. The house, garden and grounds are in the guardianship of English Heritage. They have been restored and are open to the public. History 1651–1842: early history In 1651, Thomas Manning sold a parcel of land including most of the current property to John Know the elder, from a Kentish yeoman family, for £345 (equivalent to £ today). It has been debated whether this price is likely to have included a hous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emma Darwin
Emma Darwin (; 2 May 1808 – 2 October 1896) was an English woman who was the wife and first cousin of Charles Darwin. They were married on 29 January 1839 and were the parents of ten children, seven of whom survived to adulthood. Early life Emma Wedgwood was born at the family estate of Maer Hall in Maer, Staffordshire, the youngest of seven children of Josiah Wedgwood II and his wife Elizabeth "Bessie" (née Allen). Her grandfather Josiah Wedgwood had made his fortune in pottery, and like many others who were not part of the aristocracy, they were nonconformist, belonging to the Unitarian church. Charles Darwin was her first cousin; their shared grandparents were Josiah and Sarah Wedgwood, and as the Wedgwood and Darwin families were closely allied, they had been acquainted since childhood. She was close to her sister Fanny, the two being known by the family as the "Doveleys", and was charming and messy, accounting for her nickname, "Little Miss Slip-Slop". She helpe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Energy
In physical sciences, mechanical energy is the sum of macroscopic potential and kinetic energies. The principle of conservation of mechanical energy states that if an isolated system is subject only to conservative forces, then the mechanical energy is constant. If an object moves in the opposite direction of a conservative net force, the potential energy will increase; and if the speed (not the velocity) of the object changes, the kinetic energy of the object also changes. In all real systems, however, nonconservative forces, such as frictional forces, will be present, but if they are of negligible magnitude, the mechanical energy changes little and its conservation is a useful approximation. In elastic collisions, the kinetic energy is conserved, but in inelastic collisions some mechanical energy may be converted into thermal energy. The equivalence between lost mechanical energy and an increase in temperature was discovered by James Prescott Joule. Many devices are us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biology
Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, History of life, origin, evolution, and distribution of life. Central to biology are five fundamental themes: the cell (biology), cell as the basic unit of life, genes and heredity as the basis of inheritance, evolution as the driver of biological diversity, energy transformation for sustaining life processes, and the maintenance of internal stability (homeostasis). Biology examines life across multiple biological organisation, levels of organization, from molecules and cells to organisms, populations, and ecosystems. Subdisciplines include molecular biology, physiology, ecology, evolutionary biology, developmental biology, and systematics, among others. Each of these fields applies a range of methods to investigate biological phenomena, including scientific method, observation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biologist
A biologist is a scientist who conducts research in biology. Biologists are interested in studying life on Earth, whether it is an individual Cell (biology), cell, a multicellular organism, or a Community (ecology), community of Biological interaction, interacting populations. They usually specialize in a particular Outline of biology#Subdisciplines, branch (e.g., molecular biology, zoology, and evolutionary biology) of biology and have a specific research focus (e.g., studying malaria or cancer). Biologists who are involved in basic research have the aim of advancing knowledge about the natural world. They conduct their research using the scientific method, which is an empirical method for testing hypothesis, hypotheses. Their discoveries may have Applied science#Applied research, applications for some specific purpose such as in biotechnology, which has the goal of developing medically useful products for humans. In modern times, most biologists have one or more academic degre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologist
A geologist is a scientist who studies the structure, composition, and History of Earth, history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the Field research, field and the laboratory. Geologists work in the Energy industry, energy and mining sectors to exploit Natural resource, natural resources. They monitor environmental hazards such as earthquakes, volcanoes, tsunamis and landslides. Geologists are also important contributors to climate change discussions. History James Hutton is often viewed as the first modern geologist. In 1785 he presented a paper entitled ''Theory of the Earth'' to the Royal Society of Edinburgh. In his paper, he explained his theory that the Earth must be much older than had previously been supposed to allow enough time for mountains to be eroded and for sediments to form new rocks at the bottom of the sea, which in turn were raised up to become dry land. Hutton pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuberculosis
Tuberculosis (TB), also known colloquially as the "white death", or historically as consumption, is a contagious disease usually caused by ''Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, in which case it is known as inactive or latent tuberculosis. A small proportion of latent infections progress to active disease that, if left untreated, can be fatal. Typical symptoms of active TB are chronic cough with hemoptysis, blood-containing sputum, mucus, fever, night sweats, and weight loss. Infection of other organs can cause a wide range of symptoms. Tuberculosis is Human-to-human transmission, spread from one person to the next Airborne disease, through the air when people who have active TB in their lungs cough, spit, speak, or sneeze. People with latent TB do not spread the disease. A latent infection is more likely to become active in those with weakened I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar (law)
In law, the bar is the legal profession as an institution. The term is a metonym for the line (or "bar") that separates the parts of a courtroom reserved for spectators and those reserved for participants in a trial such as lawyers. In the United Kingdom, the term "the bar" refers only to the professional organization for barristers (referred to in Scotland as advocates); the other type of UK lawyer, solicitors, have their own body, the Law Society. Correspondingly, being "called to the bar" refers to admission to the profession of barristers, not solicitors. Courtroom division The origin of the term ''bar'' is from the barring furniture dividing a medieval European courtroom, which defined the areas restricted to lawyers and court personnel from which the general public was excluded. Within most modern courts of the U.S., Europe and many other countries, the bar continues to be represented by a physical partition, such as a railing or barrier. The area behind the bar i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Wrangler
At the University of Cambridge in England, a "Wrangler" is a student who gains first-class honours in the Mathematical Tripos competition. The highest-scoring student is the Senior Wrangler, the second highest is the Second Wrangler, and so on. By contrast, the person who achieves the lowest exam marks while still earning a third-class honours degree (that is, while still earning an honours degree at all) is known as the wooden spoon. History Until 1909, the university made the rankings public. Since 1910, it has publicly revealed only the class of degree gained by each student. An examiner reveals the identity of the Senior Wrangler "unofficially" by tipping his hat when reading out the person's name, but other rankings are communicated to each student privately. Therefore, the names of only some 20th-century Senior Wranglers (such as Crispin Nash-Williams, Christopher Budd, Frank P. Ramsey, Donald Coxeter, Kevin Buzzard, Jayant Narlikar, George Reid and Ben J. Green) h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clapham
Clapham () is a district in south London, south west London, England, lying mostly within the London Borough of Lambeth, but with some areas (including Clapham Common) extending into the neighbouring London Borough of Wandsworth. History Early history The present day Clapham High Street is on the route of a Roman roads in Britannia, Roman road. The road is recorded on a Roman monumental stone found nearby. According to its inscription, the stone was erected by a man named Vitus Ticinius Ascanius. It is estimated to date from the 1st century AD. (The stone was discovered during building works at Clapham Common South Side in 1912. It is now placed by the entrance of the former Clapham Library, in the Old Town.) According to the history of the Clapham family, maintained by the College of Heralds, in 965 King Edgar of England gave a grant of land at Clapham to Jonas, son of the Duke of Lorraine, and Jonas was thenceforth known as Jonas "de [of] Clapham". The family remained in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Pritchard
Reverend Charles Pritchard (29 February 1808 – 28 May 1893) was a British astronomer, clergyman, and educational reformer. He founded the Clapham Grammar School in 1834 and included sciences in the curriculum. A chapel was erected in 1846. Biography He was born at Alberbury, Shropshire, fourth son of William Pritchard, a failed manufacturer who later moved to London where he attended the Merchant Taylor's School and Poplar Academy where he was taught by John Stock, the progressive educationalist. Pritchard later described his studies as consisting of "a systematic course of instruction relating to physical phenomena". At sixteen he was enrolled as a sizar at St John's College, Cambridge, graduating in 1830 as fourth wrangler. In 1832 he was elected a fellow of his college, and in the following year he was ordained, and became head of a private school at Stockwell. From 1834 to 1862 he was headmaster of Clapham grammar school. He then retired to Freshwater, in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
