Erik Wallenberg
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Erik Wallenberg
Erik Wallenberg (25 December 1915 – 18 October 1999) was a Swedish engineer. He is credited for inventing the Tetra Pak tetrahedron packaging in 1944. Career Wallenberg had initially planned to join the Army as an officer, but fell ill during military training and had to abandon his plans. He was accepted at Karolinska Institutet medical school in Stockholm, but decided to move to Lund and try to enter the medical school at Lund University instead. In 1943, waiting to get accepted at Lund University, Wallenberg got a job as lab assistant at Åkerlund & Rausing, a local firm manufacturing food packaging. When his manager got drafted in 1944, he became head of the research lab, aged 28. The team had orders from the company owner Ruben Rausing to produce a viable packaging for milk that was cheap enough to compete with the current milk distribution system, based on loose milk sold in reusable glass bottles. The key to this was to use as little packaging material as possible. The r ...
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Tetra Classic Aseptic
Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification. TETRA was specifically designed for use by government agencies, emergency services, (police forces, fire departments, ambulance) for public safety networks, rail transport staff for train radios, transport services and the military. TETRA is the European version of trunked radio, similar to Project 25. TETRA is a European Telecommunications Standards Institute (ETSI) standard, first version published 1995; it is mentioned by the European Radiocommunications Committee (ERC). Description TETRA uses time-division multiple access (TDMA) with four user channels on one radio carrier and 25 kHz spacing between carriers. Both point-to-point and point-to-multipoint transfer can be used. Digital data transmission is also included in the standard though at a low data rate. TETRA Mobi ...
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Karolinska Institute Alumni
The Karolinska Institute (KI; sv, Karolinska Institutet; sometimes known as the (Royal) Caroline Institute in English) is a research-led Medical school, medical university in Solna Municipality, Solna within the Stockholm urban area of Sweden. The Karolinska Institute is consistently ranked amongst the world's best medical schools, ranking 6th worldwide for medicine in 2021. The Nobel Assembly at the Karolinska Institute awards the Nobel Prize in Physiology or Medicine. The assembly consists of fifty professors from various medical disciplines at the university. The current Rector (academia), rector of Karolinska Institute is Ole Petter Ottersen, who took office in August 2017. The Karolinska Institute was founded in 1810 on the island of Kungsholmen on the west side of Stockholm; the main campus was relocated decades later to Solna, just outside Stockholm. A second campus was established more recently in Flemingsberg, Huddinge Municipality, Huddinge, south of Stockholm. The K ...
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1999 Deaths
File:1999 Events Collage.png, From left, clockwise: The funeral procession of King Hussein of Jordan in Amman; the 1999 İzmit earthquake kills over 17,000 people in Turkey; the Columbine High School massacre, one of the first major school shootings in the United States; the Year 2000 problem ("Y2K"), perceived as a major concern in the lead-up to the year 2000; the Millennium Dome opens in London; online music downloading platform Napster is launched, soon a source of online piracy; NASA loses both the Mars Climate Orbiter and the Mars Polar Lander; a destroyed T-55 tank near Prizren during the Kosovo War., 300x300px, thumb rect 0 0 200 200 Death and state funeral of King Hussein rect 200 0 400 200 1999 İzmit earthquake rect 400 0 600 200 Columbine High School massacre rect 0 200 300 400 Kosovo War rect 300 200 600 400 Year 2000 problem rect 0 400 200 600 Mars Climate Orbiter rect 200 400 400 600 Napster rect 400 400 600 600 Millennium Dome 1999 was designated as the ...
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1915 Births
Events Below, the events of World War I have the "WWI" prefix. January * January – British physicist Sir Joseph Larmor publishes his observations on "The Influence of Local Atmospheric Cooling on Astronomical Refraction". *January 1 ** WWI: British Royal Navy battleship HMS ''Formidable'' is sunk off Lyme Regis, Dorset, England, by an Imperial German Navy U-boat, with the loss of 547 crew. ** Battle of Broken Hill: A train ambush near Broken Hill, New South Wales, Australia, is carried out by two men (claiming to be in support of the Ottoman Empire) who are killed, together with 4 civilians. * January 5 – Joseph E. Carberry sets an altitude record of , carrying Capt. Benjamin Delahauf Foulois as a passenger, in a fixed-wing aircraft. * January 12 ** The United States House of Representatives rejects a proposal to give women the right to vote. ** '' A Fool There Was'' premières in the United States, starring Theda Bara as a '' femme fatale''; she quickly become ...
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Science Museum (London)
The Science Museum is a major museum on Exhibition Road in South Kensington, London. It was founded in 1857 and is one of the city's major tourist attractions, attracting 3.3 million visitors annually in 2019. Like other publicly funded national museums in the United Kingdom, the Science Museum does not charge visitors for admission, although visitors are requested to make a donation if they are able. Temporary exhibitions may incur an admission fee. It is one of the five museums in the Science Museum Group. Founding and history The museum was founded in 1857 under Bennet Woodcroft from the collection of the Royal Society of Arts and surplus items from the Great Exhibition as part of the South Kensington Museum, together with what is now the Victoria and Albert Museum. It included a collection of machinery which became the ''Museum of Patents'' in 1858, and the ''Patent Office Museum'' in 1863. This collection contained many of the most famous exhibits of what is now t ...
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Tetra Brik
Tetra Brik is a brand name for a carton package produced by the Swedish packaging company Tetra Pak. Its shape is cubic or cuboid, and it is available with or without various different caps. The Tetra Brik is the best-known and most sold package in the Tetra Pak packaging family, to the extent that Tetra Brik is sometimes mistaken for the brand name. The Tetra Brik comes in either chilled (Tetra Brik) or ambient (Tetra Brik Aseptic) package types. Background The Tetra Brik package was introduced in 1963, after a long process of development and built on the previous Tetra Classic tetrahedron package that laid the foundation for Tetra Pak. Despite the revolutionary character of the new retail system, by the end of the 1950s Ruben Rausing and the Tetra Pak management team realised that the Tetra Pak package portfolio needed to be supplemented by an additional rectangular model to continue to be competitive. Large amounts were spent on development, and in 1963 the first Tetra Brik pac ...
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Royal Swedish Academy Of Engineering Sciences
The Royal Swedish Academy of Engineering Sciences or ''Kungliga Ingenjörsvetenskapsakademien'' (IVA), founded on 24 October 1919 by King Gustaf V, is one of the royal academies in Sweden. The academy is an independent organisation, which promotes contact and exchange between business, research, and government, in Sweden and internationally. It is the world's oldest academy of engineering sciences.(OECD Reviews of Innovation Policy: Sweden 2012). Leadership The King is the patron of the Academy. The following people have been presidents of IVA since its foundation in 1919: *1919–1940: Axel F. Enström *1941–1959: Edy Velander *1960–1970: Sven Brohult *1971–1982: Gunnar Hambraeus *1982–1994: Hans G. Forsberg *1995–2000: Kurt Östlund *1999–2001: (temporary) Enrico Deiaco *2001–2008: Lena Treschow Torell *2008–2017: Björn O. Nilsson *2017–2023: Tuula Teeri Academy member Each year, outstanding scientists and engineers from universities and industrie ...
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Niels Bohr
Niels Henrik David Bohr (; 7 October 1885 – 18 November 1962) was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research. Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another. Although the Bohr model has been supplanted by other models, its underlying principles remain valid. He conceived the principle of complementarity: that items could be separately analysed in terms of contradictory properties, like behaving as a wave or a stream of particles. The notion of complementarity dominated Bohr's thinking in both science and philosophy. Bohr founded the Institute of Theoretical Physics at the University of Cope ...
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Ruben Rausing
Anders Ruben Rausing (; né Andersson; 17 June 1895 – 10 August 1983) was a Swedish industrialist and the founder of the liquid food packaging company Tetra Pak. Early life Anders Ruben Andersson was born in 1895 in Råå, a small fishing hamlet in the district of Raus outside of Helsingborg in the south of Sweden, to August and Mathilda Andersson. His father ran a small but successful business as a master painter. Rausing went to Upper Secondary School in Helsingborg, graduating in 1915. When doing his military service, Rausing, at the time still called (Anders) Ruben Andersson, was allegedly nicknamed ''rausingen'' by his fellow servicemen, meaning "the lad from Raus" (referring to his parish of origin). Taking a liking to this name, he eventually changed his surname from Andersson to Rausing. The change took place in 1921. Career With the help of a loan from his aunt, Rausing studied at the recently founded Stockholm School of Economics and Business Administration, graduat ...
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Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, Finland to the east, and is connected to Denmark in the southwest by a bridgetunnel across the Öresund. At , Sweden is the largest Nordic country, the third-largest country in the European Union, and the fifth-largest country in Europe. The capital and largest city is Stockholm. Sweden has a total population of 10.5 million, and a low population density of , with around 87% of Swedes residing in urban areas in the central and southern half of the country. Sweden has a nature dominated by forests and a large amount of lakes, including some of the largest in Europe. Many long rivers run from the Scandes range through the landscape, primarily ...
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Åkerlund & Rausing
Åkerlund is a Swedish surname. Notable people with the surname include: *Gunnar Åkerlund (1923–2006), Swedish sprint canoeist *Jonas Åkerlund (born 1965), Swedish film and music video director *Magnus Åkerlund (born 1986), Swedish ice hockey player *Olle Åkerlund (1911–1978), Swedish sailor *Totte Åkerlund Erik "Totte" Åkerlund (6 March 1915 – 16 March 2009) was a Swedish curler. (look for "Åkerlund, Erik “Totte”") He was a and a four-time Swedish men's curling champion (1947, 1951, 1959, 1967). He was also a curling activist, in the y ... (Erik) (1915–2009), Swedish curler {{DEFAULTSORT:Akerlund Swedish-language surnames ...
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