| JUNE 12 - BIRTHS | |
| Bert Sakmann | |
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German medical doctor and research scientist who in 1991, (with German physicist Erwin Neher), won the Nobel Prize for Physiology or Medicine for research into basic cell function and for development of the patch-clamp technique (a laboratory method widely used in cell biology and neuroscience to detect electrical currents as small as a trillionth of an ampere through cell membranes.) |
| Carl I. Hovland | |
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Carl Iver Hovland was an American psychologist who pioneered in the study of social communication and the modification of attitudes and beliefs. In 1929, he was one of 30 individuals to work in the communication program founded at Yale University. The program was implemented as a study and became a cooperation research group of 30 individuals. Their mission was to study persuasion communication such as educational programs, publicity campaigns, advertising, propaganda and their effects on behavior and opinion. In 1942, during WW II, Hovland worked on a government study concerning military films and their effect on soldiers’ attitudes, behavior and morale. |
| Lyman Creighton Craig | |
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American chemist who pioneered in the careful fractionation of complex mixtures by a variety of methods. In 1960, with his colleagues, Craig isolated and purified parathormone, the active principle of the parathyroid gland. This was a notable achievement, for it was a rare item separated from a complex mixture. |
| Fritz Albert Lipmann | |
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German-born American biochemist, who received (with Sir Hans Krebs) the 1953 Nobel Prize for Physiology or Medicine for the discovery of coenzyme A, an important catalytic substance involved in the cellular conversion of food into energy. Coenzyme A is a compound with a rather small molecule, which, when united with the enzyme-protein, acquires the property of binding acetic acid. Acetic acid is normally quite unreactive but when bound in this way it becomes labile and reactive and represents the previously mystical 2-carbon compound which combines with a 4-carbon compound to form citric acid. A new way for the transmission of energy in the cell was demonstrated by this discovery. |
| Robert H. Lowie | |
Robert Harry Lowie was an Austrian-born American anthropologist whose extensive studies of North American Plains Indians include exemplary research on the Crow. Lowie was instrumental in the development of the discipline. He helped form the profession and influenced the way in which anthropology is done today 'through such works as Culture and Ethnology (1917), Primitive Society (1920), and Social Organization (1948). Lowie's most intense fieldwork on the culture of the Crow Indians took place every season from 1910 to 1916. It was with this assignment that Lowie began to employ "salvage ethnography," the purpose of which was to salvage a record of what was left of a culture before it disappeared. |
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| Sir Harry Hamilton Johnston | |
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British explorer, botanist, and pioneer colonial administrator. His interest in zoological specimens gave him a lucrative part-time income, illustrating books for the new sciences of biology, geography and anthropology. The combination of art, languages and a developing interest in the sciences marked Johnston as a new breed of scholar whose skills met colonialism's need for exploration, expansion and documentation.Widely travelled in Africa and speaking many African languages, he was closely involved in what has been called the scramble for Africa by 19th-century colonial powers. He published 40 books on African subjects. |
| Sir Oliver Joseph Lodge | |
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British physicist who perfected his "coherer" to act as a radio-wave detector, the essential part of an early radiotelegraph receiver. On 14 Aug 1894, he made the first demonstration of wireless transmission of information using Morse code at a meeting of the British Association at Oxford. He transmitted a message about 150 yards from the old Clarendon Laboratory to the University Museum. He provided his laborary facilities to conduct the first clinical use of X-rays in England (7 Feb 1896), at the request of surgeon Sir Robert Jones (1855-1933), to examine the wrist of boy who had accidentally shot himself. Lodge invented electric spark ignition, and investigated psychic phenomena with his friend Sir Arthur Conan Doyle.« |
| Sir David Gill | |
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Scottish astronomer known for his measurements of solar and stellar parallax, showing the distances of the Sun and other stars from Earth, and for his early use of photography in mapping the heavens. From his first training as a watchmaker, he progressed to the timekeeping requirements of astronomy. He designed, equipped, and operated a private observatory near Aberdeen. In 1877, Gill and his wife measured the solar parallax by observing Mars from Ascension Island. To determine parallaxes, he perfected the use of the heliometer, a telescope that uses a split image to measure the angular separation of celestial bodies. He later redetermined the solar parallax to such precision that his value was used for almanacs until 1968. |
| John Augustus Roebling | |
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German-American engineer who pioneered the design and construction of suspension bridges. In 1831 he immigrated to Saxonburg, near Pittsburgh, Pa., and shortly thereafter was employed by the Pennsylvania Railroad Corp. to survey its route across the Allegheny Mountains. He then demonstrated the practicability of steel cables in bridge construction and in 1841 established at Saxonburg the first U.S. factory to manufacture steel-wire rope. Roebling utilized steel cables in the construction of numerous suspension bridges including a railroad suspension bridge over the Niagara River at Niagara Falls (1851-55). He designed the Brooklyn Bridge. He died from injuries while supervising preliminary construction operations. |
| JUNE 12 - DEATHS | |
| Karl von Frisch | |
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Zoologist whose studies of communication among bees added significantly to the knowledge of the chemical and visual sensors of insects and simple animals. He shared the 1973 Nobel Prize for Physiology or Medicine with animal behaviourists Konrad Lorenz and Nikolaas Tinbergen. He showed that bees have the ability to recognize different odours and tastes, and discovered their famous "waggle dance" used by bees to communicate among with others in the hive. This sequence of body movements indicates the direction and distance to food. He showed polarized light is used by the bees as a "compass" for navigation, even when the sun is not visible. In fish, he demonstrated their acute hearing, and ability to distinguish colours and brightness. |
| Silvanus Phillips Thompson | |
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British physicist and historian of science. He was a recognised authority upon electricity, magnetism and acoustics and his writings are numerous including Elementary Lessons in Electricity and Magnetism published in 1881 which ran through some 40 editions and reprints. He was also known for contributions in electrical machinery, optics, and X rays. In 1884, he published his epoch-making work Dynamo-electric Machinery: a Manual for Students of Electrotechnics. Practically every designer of electrical machines gleaned his first information on the subject from this work. His lectures to the Royal Institution on Light, visible and invisible in book form and Polyphase Electric Currents and Motors were published in 1896. |
| Ferdinand Zirkel | |
German geologist and pioneer in microscopic petrography, the study of rock minerals by viewing thin slices of rock under a microscope and noting their optical characteristics. He travelled in the U.S. through the Park Range mountains of the Continental Divide with the King Survey in 1871, and his name was given to the 12,180 foot tall peak as Mount Zirkel, in northwestern Colorado. The King Survey was one of the four "Great Surveys," the federally sponsored expeditions to the West resumed after the Civil War. These differed from their pre-Civil War surveys in their greater inclusion of civilian specialists, particularly scientists. Zirkel wrote one of the 7 volumes of the King expedition Report, Vol. VI: Microscopial Petrography (1876). |
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| Fleeming Jenkin | |
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British engineer noted for his work in establishing units of electrical measurement. After earning an M.A. (1851), he worked for the next 10 years with engineering firms engaged in the design and manufacture of submarine telegraph cables and equipment for laying them. In 1861 his friend William Thomson (later Lord Kelvin) procured Jenkin's appointment as reporter for the Committee of Electrical Standards of the British Association for the Advancement of Science. He helped compile and publish reports that established the ohm as the absolute unit of electrical resistance and described methods for precise resistance measurements. |
| Edward Troughton | |
English scientist and instrument maker. Troughton soon established himself as the leading maker of instruments in England. Not only did he make great improvements in the design of existing instruments, but he also invented many new instruments. He began his instrument making career with instruments to aid navigation, for example, he designed the 'pillar' sextant, patented in 1788, the dip sector, the marine barometer and the reflecting circle built in 1796. Other instruments which he designed were for use in surveying. He designed the pyrometer, the mountain barometer and the large surveying theodolites. His famous instruments were astronomical ones. He made the Groombridge Transit Circle in 1805 and a six foot Mural Transit Circle in 1810 which was erected at the Observatory in Greenwich in 1812. |
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| JUNE 12 - EVENTS | |
| Human powered flight | |
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| Blue galaxies | |
| Electrobasograph | |
| First animated cartoon | |
| Rotherhithe Road Ttunnel | |
1907 (source) |
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| Sound movies | |
| Swiss army knife | |
| Nitrogen fixing bacteria | |
| Railroad air brake | |
| Gas Mask | |
| British telegraph | |
