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Friedrich Wilhelm Bessel was a German astronomer, mathematician, physicist, and geodesist. He was the first astronomer who determined reliable values for the distance from the sun to another star by the method of parallax. Certain important mathematical functions were named Bessel functions after Bessel's death, though they had originally been discovered by Daniel Bernoulli before being generalised by Bessel.
1838 (MDCCCXXXVIII) was a common year starting on Monday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1838th year of the Common Era (CE) and Anno Domini (AD) designations, the 838th year of the 2nd millennium, the 38th year of the 19th century, and the 9th year of the 1830s decade. As of the start of 1838, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamships came into practical usage during the early 1800s; however, there were exceptions that came before. Steamships usually use the prefix designations of "PS" for paddle steamer or "SS" for screw steamer. As paddle steamers became less common, "SS" is assumed by many to stand for "steamship". Ships powered by internal combustion engines use a prefix such as "MV" for motor vessel, so it is not correct to use "SS" for most modern vessels.
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The year 1827 in science and technology involved some significant events, listed below.
The year 1829 in science and technology involved some significant events, listed below.
The year 1832 in science and technology involved some significant events, listed below.
The year 1837 in science and technology involved some significant events, listed below.
The year 1839 in science and technology involved some significant events, listed below.
The year 1840 in science and technology involved some significant events, listed below.
The year 1773 in science and technology involved some significant events.
The year 1817 in science and technology involved some significant events, listed below.
The year 1813 in science and technology involved some significant events, listed below.
The year 1811 in science and technology involved some significant events, listed below.
The year 1845 in science and technology involved some significant events, listed below.
The year 1853 in science and technology involved some significant events, listed below.
The year 1877 in science and technology involved some significant events, listed below.
The year 1868 in science and technology involved some significant events, listed below.
The year 1774 in science and technology involved some significant events.
Events from the year 1838 in Scotland.
References
- ↑ Mulder, G. J. (1838). "Over Proteine en hare Verbindingen en Ontledingsproducten". Natuur- en Scheikundig Archief. 6: 87–162.
- ↑ Vickery, Hubert Bradford (1950). "The Origin of the Word Protein". Yale Journal of Biology and Medicine. 22 (5): 387–93. PMC 2598953 . PMID 15413335.
- ↑ Heinrich, Herbert (December 1938). "The Discovery of Galvanoplasty and Electrotyping" (PDF). Journal of Chemical Education . 15 (12): 565–575. Bibcode:1938JChEd..15..565H. doi:10.1021/ed015p565 . Retrieved 2012-06-21.[ permanent dead link ]
- ↑ Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. p. 69. ISBN 978-1-84724-008-8.
- ↑ "Down's syndrome". Whonamedit? . Retrieved 2011-04-13.
- ↑ Burke, James (1978). Connections. London: Macmillan. p. 239. ISBN 978-0-333-24827-0.
- ↑ "Steamship Curaçao". Archived from the original on 24 December 2010. Retrieved 2011-02-02.
- ↑ "Icons, a portrait of England 1820-1840". Archived from the original on 22 September 2007. Retrieved 2007-09-12.
- ↑ Grantham, John (1859). On Iron Ship Building (2nd ed.). London: Lockwood. pp. 13–14.
- ↑ Patent No. 7615, Obtaining motive power from inflammable gases by compression and explosion.
- ↑ Clerk, Dugald (1897). Gas and Oil Engines. London: Longman Green & Co.
- ↑ "Copley Medal | British scientific award". Encyclopedia Britannica. Retrieved 22 July 2020.