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Thomas Tommasina
Thomas Tommasina (1855 – 29 January 1935) was an artist turned physicist who worked on atmospheric ionization and gravitational theories mainly after moving to Switzerland. An experimenter as well as a theoretician, he invented a radio-receiver-like device while studying ionospheric disturbances in the upper atmosphere and used it in long-range weather prediction. Early life Tommasina was born in the town of Intra (today part of Verbania) on the shores of Lake Maggiore in the Kingdom of Lombardy–Venetia. In his early years, he admired the Italian school of painting, particularly that of Leonardo da Vinci. Education Tommasina studied art. In 1885 he became inspired by the works of Alessandro Volta, took an interest in physics, and went to Geneva to study under Charles Soret. Here he worked on the physics behind the hardness of solids. Following the works of Julius Elster and Hans Friedrich Geitel he joined Édouard Sarasin in studies on the ionization of air and related ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aether (classical Element)
According to ancient and medieval science, aether (, alternative spellings include ''æther'', ''aither'', and ''ether''), also known as the fifth element or quintessence, is the material that fills the region of the universe beyond the terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light and gravity. In the late 19th century, physicists postulated that aether permeated all throughout space, providing a medium through which light could travel in a vacuum, but evidence for the presence of such a medium was not found in the Michelson–Morley experiment, and this result has been interpreted as meaning that no such luminiferous aether exists. Mythological origins The word (''aithḗr'') in Homeric Greek means "pure, fresh air" or "clear sky". In Greek mythology, it was thought to be the pure essence that the gods breathed, filling the space where they lived, analogous to the '' air'' br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swiss Physicists
Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri *Swiss, North Carolina * Swiss, West Virginia * Swiss, Wisconsin Other uses *Swiss-system tournament, in various games and sports *Swiss International Air Lines **Swiss Global Air Lines, a subsidiary *Swissair, former national air line of Switzerland *.swiss alternative TLD for Switzerland See also *Swiss made, label for Swiss products *Swiss cheese (other) *Switzerland (other) *Languages of Switzerland, none of which are called "Swiss" *International Typographic Style, also known as Swiss Style, in graphic design *Schweizer (other), meaning Swiss in German *Schweitzer Schweitzer is a surname. Notable people with the surname include: * Albert Schweitzer, German theologian, musician, physician, and medical missionary, winner of the 1952 Nobel Peace Prize * Anton Schweitzer, opera composer * Brian Schweitzer, forme ..., a family name meaning Swiss in German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneva
Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaking part of Switzerland. Situated in the south west of the country, where the Rhône exits Lake Geneva, it is the capital of the Republic and Canton of Geneva. The city of Geneva () had a population 201,818 in 2019 (Jan. estimate) within its small municipal territory of , but the Canton of Geneva (the city and its closest Swiss suburbs and exurbs) had a population of 499,480 (Jan. 2019 estimate) over , and together with the suburbs and exurbs located in the canton of Vaud and in the French departments of Ain and Haute-Savoie the cross-border Geneva metropolitan area as officially defined by Eurostat, which extends over ,As of 2020, the Eurostat-defined Functional Urban Area of Geneva was made up of 93 Swiss communes and 158 French communesFederal Statistical O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Champel
Champel is a neighborhood in the city of Geneva, Switzerland. Champel is widely considered a posh, high-class neighbourhood due to its numerous parks and natural spaces, very luxurious apartments and proximity to the city center. Residences mostly consist of mid-range to high-scale apartments. Champel is home to Cité Universitaire (french: for university campus), a hostel-like complex for students of the University of Geneva. Geography Champel is in close proximity to Florissant, which like Champel is an exclusive neighborhood, bordered by the neighborhood of Eaux-Vives to the north, the municipality of Veyrier to the east, the municipality of Carouge to the south and the city center to the west, occupying an area of approximately 1.9 km2. Sights The 'plateau de Champel' is the center of the neighbourhood. The 'Parc Bertrand' is a popular park, featuring a former primary school (which is now a day-care center), a fenced dog park, a playground for small children as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guglielmo Marconi
Guglielmo Giovanni Maria Marconi, 1st Marquis of Marconi (; 25 April 187420 July 1937) was an Italian inventor and electrical engineer, known for his creation of a practical radio wave-based wireless telegraph system. This led to Marconi being credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".Guglielmo Marconi: The Nobel Prize in Physics 1909 . nobelprize.org Marconi was also an entrepreneur, businessman, and founder of The Wireless Telegraph & Signal Company in the |
Édouard Branly
Édouard Eugène Désiré Branly (23 October 1844 – 24 March 1940) was a French inventor, physicist and professor at the Institut Catholique de Paris. He is primarily known for his early involvement in wireless telegraphy and his invention of the Branly coherer around 1890. Biography He was born on 23 October 1844 and died on 24 March 1940. His funeral was at the Notre Dame cathedral in Paris and was attended by the President of France, Albert Lebrun. He was interred in Père Lachaise Cemetery in Paris. Coherer Temistocle Calzecchi-Onesti's experiments with tubes of metal filings, as reported in "Il Nuovo Cimento" in 1884, led to the development of the first radio wave detector, the ''coherer'', by Branly some years later. It was the first widely used detector for radio communication. This consisted of iron filings contained in an insulating tube with two electrodes that will conduct an electric current under the action of an applied electrical signal. The operation of the cohe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Édouard Sarasin
Edouard Sarasin (20 May 1843 – 22 July 1917) was an independent scientist in Geneva. Born in a wealthy family, he established a private laboratory where he collaborated with other researchers. His studies included those on the properties of waves, resonance, radiowaves, radiation and geophysics. Sarasin came from a family of French descent who had settled in Geneva in the early sixteenth century. Sarasin studied physics at Paris, Heidelberg and Berlin and in 1867 he established a private laboratory on rue de l'Hôtel-de-Ville, and worked with other collaborators including Auguste de la Rive (1801-1873) and his son Lucien de la Rive. They made studies on ionization and discharge in vacuum tubes. Sarasin was later also mayor of the town of Le Grand-Saconnex (1871-1916), member of the parliament of Geneva (''Grand Conseil genevois''), President of the Societe Helvetique and editor of the ''Archives des Sciences physiques et naturelles''. Sarasin's experimental work developed on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verbania
Verbania (, , ) is the most populous ''comune'' (municipality) and the capital city of the province of Verbano-Cusio-Ossola in the Piedmont region of northwest Italy. It is situated on the shore of Lake Maggiore, about north-west of Milan and about from Locarno in Switzerland. It had a population of 30,827 at 1 January 2017. History The area has been inhabited since prehistoric times. The oldest known people living in the area were the Lepontii.Direzione comunicazione istituzionale dell'assemblea regionale, Comuni della provincia del Verbano-Cusio-Ossola, Consiglio Regionale del Piemonte, 2012 The area was added to the Roman Empire by Emperor Augustus in the first century AD. In the eleventh century the area was controlled by the bishops of Novara, then by the counts of Pombia. In 1152 Federico Barbarossa gave the area to the Castello family. After the death of Frederick Barbarossa, the territory was again controlled by Novara. By the fourteenth century, the area had b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Friedrich Geitel
Hans Friedrich Karl Geitel (16 July 1855 in Braunschweig – 15 August 1923 in Wolfenbüttel) was a German physicist. He is credited with coining the phrase "atomic energy." Biography Through the relocation of his family, his father was a forester, Hans Geitel came to Blankenburg in 1861 and grew up in close proximity to Julius Elster. He attended school and high school together with Elster. A lifelong friendship developed between the two of them, their interest in science became a shared field of activity. During their studies both spent two years in Heidelberg and Berlin. In 1879 Geitel got his teaching degree in Braunschweig and accepted a position as teacher at the then called Herzogliche Große Schule (translation: Ducal Great School) in Wolfenbüttel. In 1881 Geitel succeeded in getting Julius Elster to the school as well. There they intensified their joint researches. Karl Bergwitz (1875–1958), who continued their research, was one of their students there. In 1892 Geite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Elster
Julius Johann Phillipp Ludwig Elster (24 December 1854 in Blankenburg – 6 April 1920) was a teacher and physicist. Biography Elster and Hans Friedrich Geitel, the son of a Forstmeister who had moved to Blankenburg with his family in 1861, grew up in the same neighborhood and attended school and high school together. The personal friendship was deepened by the shared interest in the natural sciences during their years at university in Heidelberg and Berlin. After they received their teaching certification in Brunswick, they went their separate ways for a short time. In 1881 they were working together at the ''Herzogliche Große Schule'' (translation: Ducal Great School) in Wolfenbüttel and used their leisure for experimental research. There Karl Bergwitz (1875–1958) was among their students. Elster was awarded an honorary doctorate (1915) along with Geitel at the Braunschweig University of Technology. In 1919, he was diagnosed with diabetes mellitus. In April 1920, the Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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