Mårten Triewald FRS (18 November 1691 – 8 August 1747), sometimes referred to as Mårten Triewald the Younger, was a Swedish merchant,

engineer Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the limit ...

and amateur

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...

. Mårten Triewald was the son of Mårten Triewald the Elder, a

farrier A farrier is a specialist in equine hoof care, including the trimming and balancing of horses' hooves and the placing of shoes on their hooves, if necessary. A farrier combines some blacksmith's skills (fabricating, adapting, and adj ...

and

anchor An anchor is a device, normally made of metal , used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin ''ancora'', which itself comes from the Greek ἄ� ...

smith of German origin. Triewald's mercantile activities took him to

London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...

where he attended lectures in Newtonian Experimental Philosophy given by

John Theophilus Desaguliers John Theophilus Desaguliers FRS (12 March 1683 – 29 February 1744) was a British natural philosopher, clergyman, engineer and freemason who was elected to the Royal Society in 1714 as experimental assistant to Isaac Newton. He had studied at ...

and with whom he later corresponded. In 1716 Triewald was employed as an inspector at a

coal mine Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from ...

Newcastle Newcastle usually refers to: *Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England *Newcastle-under-Lyme, a town in Staffordshire, England *Newcastle, New South Wales, a metropolitan area in Australia, named after Newcastle ...

, where he studied

mechanics Mechanics (from Ancient Greek: μηχανική, ''mēkhanikḗ'', "of machines") is the area of mathematics and physics concerned with the relationships between force, matter, and motion among physical objects. Forces applied to object ...

and the steam engines used there, and made improvements to them. He returned to Sweden in 1726 and at

Dannemora mine The Dannemora mine (''Dannemora gruvor'') at Dannemora in Uppsala County, Sweden was once one of the most important iron ore mines in Sweden. The mine was closed by its owners SSAB in 1992. It may have been open since the 13th century, but th ...

and built a steam engine there under the designation "fire and air machine" (''eld- och luftmachin'' in archaic Swedish). This steam engine is believed to be the first steam engine in Sweden that was put to practical and industrial use. In 1728 and 1729 Triewald held lectures in mechanics at the

Swedish House of Nobility The House of Nobility ( sv, Riddarhuset) in Stockholm, Sweden, is a corporation and a building that maintains records and acts as an interest group on behalf of the Swedish nobility. Name The name is literally translated as ''House of Knights'', ...

, and demonstrated a collection of physical instruments that he had bought in England. In 1732, these instruments were taken over by

Lund University , motto = Ad utrumque , mottoeng = Prepared for both , established = , type = Public research university , budget = SEK 9 billion Daniel Menlös was made a professor of mathematics at the university. In 1729 he formed a diving company, and wrote about the use of

diving bell A diving bell is a rigid chamber used to transport divers from the surface to depth and back in open water, usually for the purpose of performing underwater work. The most common types are the open-bottomed wet bell and the closed bell, which c ...

s and equipment for divers under the title ''Konsten att lefa under watn'' ("The art of living under water"). He also took an interest in

bee-keeping Beekeeping (or apiculture) is the maintenance of bee colonies, commonly in man-made beehives. Honey bees in the genus '' Apis'' are the most-commonly-kept species but other honey-producing bees such as ''Melipona'' stingless bees are also kept. B ...

and published on this subject (''Tractat om bij'', 1728). Triewald was given the title ''director mechanicus'', and in 1735 was appointed ''kapten-mekanikus'' (Captain of Mechanics) at the Fortification Administration, deemed to be "the only one in the country suitable for this post", and given an annual pension by the Parliament. In 1729, he was elected a member of the

Royal Society of Sciences in Uppsala The Royal Society of Sciences in Uppsala ( sv, Kungliga Vetenskaps-Societeten i Uppsala), is the oldest of the royal academies in Sweden, having been founded in 1710. The society has, by royal decree of 1906, 50 Swedish fellows and 100 foreign. ...

. In 1739, he was one of six founders of the Royal Swedish Academy of Sciences in Stockholm. He was also elected a

Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural knowledge, including mathemat ...

in 1731. The mansion located in the southwestern part of

Kungsholmen Kungsholmen is an island in Lake Mälaren in Sweden, part of central Stockholm, Sweden. It is situated north of Riddarfjärden and considered part of the historical province Uppland. Its area is with a perimeter of . The highest point is at ...

that Triewald bought in 1739, ''Triewalds malmgård'', still exists and carries his name. Marten Triewalds daughter Margaret Elisabeth was married to accountant Johan Falkensson (died 1779) who leased Hersbyholm on

Lidingö Lidingö, also known in its definite form ''Lidingön'' and as ''Lidingölandet'', is an island in the inner Stockholm archipelago, northeast of Stockholm, Sweden. In 2010, the population of the Lidingö urban area on the island was 31,561. It is ...

. Mårten Triewald had a brother named Samuel von Triewald, poet, politician and one of the first 'critics' in Sweden; he was also a member of the Royal Swedish Academy of Sciences."Triewald Made Career as Literary Judge"
- Article in the Swedish daily newspaper Svenska Dagbladet 29 October 2008.

References

{{DEFAULTSORT:Triewald, Marten 1691 births 1747 deaths Swedish merchants Swedish engineers Swedish scientists Members of the Royal Swedish Academy of Sciences Fellows of the Royal Society 18th-century Swedish businesspeople

See also

References