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Wolfgang Martini
''Wolfgang Martini'' (September 20, 1891 – January 6, 1963) was a Career Officer in the German Air Force and largely responsible for promoting early radar development and utilization in that country. Early career While attending the Gymnasium in his home town of Lissa in the Province of Posen, Wolfgang Martini had been a radio enthusiast. Upon graduating in 1910, he joined the Army as a Cadet, and his talents were such that he soon became a lieutenant and then company commander in a telegraph battalion. During World War I, he had a number of leadership positions in radio operations, being promoted to first lieutenant and then captain. At the end of the war, he was the responsible for radio affairs in the Grand Headquarters and commander of the Army Signals School at Namur in occupied Belgium. After the Treaty of Versailles was signed in 1919, Martini was one of the few officers allowed to remain in the Army. For the next five years, he served as a signals instructor at severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leszno
Leszno (german: Lissa, 1800–1918 ''Lissa in Posen'') is a historic city in western Poland, within the Greater Poland Voivodeship. It is the seventh-largest city in the province with an estimated population of 62,200, as of 2021. Previously, it was the capital of the Leszno Voivodeship (1975–1998) and is now the seat of Leszno County. History Early history The city's unrecorded history dates to the 13th century. It was first mentioned in historical documents in 1393, when the estate was the property of a noble named Stefan Karnin- Wieniawa. The family eventually adopted the name Leszczyński (literal meaning "of Leszno"), derived from the name of their estate, as was the custom among the Polish nobility. 16th–18th centuries In around 1516, a community of Protestants known as the Unity of the Brethren (''Unitas fratrum'') were expelled from the Bohemian lands by King Vladislaus II and settled in Leszno. They were invited by the Leszczyński family, imperial counts since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seetakt Radar
Seetakt was a shipborne radar developed in the 1930s and used by Nazi Germany's ''Kriegsmarine'' during World War II. Development In Germany during the late 1920s, Hans Hollmann began working in the field of microwaves, which were to later become the basis of almost all radar systems. In 1935 he published ''Physics and Technique of Ultrashort Waves'', which was picked up by researchers around the world. At the time he had been most interested in their use for communications, but he and his partner Hans-Karl von Willisen had also worked on radar-like systems. In 1928 Hollmann, von Willisen and Paul-Günther Erbslöh started a company Gesellschaft für elektroakustische und mechanische Apparate (GEMA). In the autumn of 1934, GEMA built the first commercial radar system for detecting ships, similar to a system developed by Christian Hülsmeyer. Operating in the 50 cm range it could detect ships up to 10 km away. This early version of the system only provided a warning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Martini Barracks
A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry. In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED Online. March 2021. Oxford University Press. https://www.oed.com/view/Entry/77489?rskey=dCKrg4&result=1 (accessed May 11, 2021) The term ''general'' is used in two ways: as the generic title for all grades of general officer and as a specific rank. It originates in the 16th century, as a shortening of ''captain general'', which rank was taken from Middle French ''capitaine général''. The adjective ''general'' had been affixed to officer designations since the late medieval period to indicate relative superiority or an extended jurisdiction. Today, the title of ''general'' is known in some countries as a four-star rank. However, different countries use different systems of stars or other insignia for senior ranks. It has a NATO rank scal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Geographical Society
The Royal Geographical Society (with the Institute of British Geographers), often shortened to RGS, is a learned society and professional body for geography based in the United Kingdom. Founded in 1830 for the advancement of geographical sciences, the Society has 16,000 members, with its work reaching the public through publications, research groups and lectures. The Society was founded in 1830 under the name ''Geographical Society of London'' as an institution to promote the 'advancement of geographical science'. It later absorbed the older African Association, which had been founded by Sir Joseph Banks in 1788, as well as the Raleigh Club and the Palestine Association. In 1995 it merged with the Institute of British Geographers, a body for academic geographers, to officially become the Royal Geographical Society ''with IBG''. The society is governed by its Council, which is chaired by the Society's President, according to a set of statutes and standing orders. The members ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lifesaving Medal
The Gold Lifesaving Medal and Silver Lifesaving Medal are U.S. decorations issued by the United States Coast Guard. The awards were established by Act of Congress, 20 June 1874; later authorized by . These decorations are two of the oldest medals in the United States and were originally established at the Department of Treasury as Lifesaving Medals First and Second Class. The Department of the Treasury initially gave the award, but today the United States Coast Guard awards it through the Department of Homeland Security. They are not classified as military decorations, and may be awarded to any person. Chapter 4 History A British Sea Gallantry Medal The Sea Gallantry Medal (SGM) (officially the 'Medal for Saving Life at Sea', and originally the ' Board of Trade Medal for Saving Life at Sea'), is a United Kingdom award for civil gallantry at sea. History The Merchant Shipping Act 1854 pr ... for saving life was authorized in 1854. Twenty years later in the United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Cross Of The Order Of Merit Of The Federal Republic Of Germany
The Order of Merit of the Federal Republic of Germany (german: Verdienstorden der Bundesrepublik Deutschland, or , BVO) is the only federal decoration of Germany. It is awarded for special achievements in political, economic, cultural, intellectual or honorary fields. It was created by the first President of the Federal Republic of Germany, Theodor Heuss, on 7 September 1951. Colloquially, the decorations of the different classes of the Order are also known as the Federal Cross of Merit (). It has been awarded to over 200,000 individuals in total, both Germans and foreigners. Since the 1990s, the number of annual awards has declined from over 4,000, first to around 2,300–2,500 per year, and now under 2,000, with a low of 1752 in 2011. Since 2013, women have made up a steady 30–35% of recipients. Most of the German federal states (''Länder'') have each their own order of merit as well, with the exception of the Free and Hanseatic Cities of Bremen and Hamburg, which reject a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knights Cross Of The War Merit Cross
The War Merit Cross (german: Kriegsverdienstkreuz) was a state decoration of Nazi Germany during World War II. By the end of the conflict it was issued in four degrees and had an equivalent civil award. A " de-Nazified" version of the War Merit Cross was reissued in 1957 by the ''Bundeswehr'' for its veterans. History This award was created by Adolf Hitler in October 1939 as a successor to the non-combatant Iron Cross which was used in earlier wars (similar medal but with a different ribbon). The award was graded in the same manner as the Iron Cross: ''War Merit Cross Second Class'', ''War Merit Cross First Class'', and ''Knights Cross of the War Merit Cross''. The award had two variants: ''with swords'' given to soldiers for exceptional service "not in direct connection with combat", and ''without swords'' given to civilians for meritorious service in "furtherance of the war effort". Recipients had to have the lower grade of the award before getting the next level. The weari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Watson-Watt
Sir Robert Alexander Watson Watt (13 April 1892 – 5 December 1973) was a Scottish pioneer of radio direction finding and radar technology. Watt began his career in radio physics with a job at the Met Office, where he began looking for accurate ways to track thunderstorms using the radio signals given off by lightning. This led to the 1920s development of a system later known as high-frequency direction finding (HFDF or "huff-duff"). Although well publicized at the time, the system's enormous military potential was not developed until the late 1930s. Huff-duff allowed operators to determine the location of an enemy radio in seconds and it became a major part of the network of systems that helped defeat the threat of German U-boats during World War II. It is estimated that huff-duff was used in about a quarter of all attacks on U-boats. In 1935 Watt was asked to comment on reports of a German death ray based on radio. Watt and his assistant Arnold Frederic Wilkins quickly dete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Göring
Hermann Wilhelm Göring (or Goering; ; 12 January 1893 – 15 October 1946) was a German politician, military leader and convicted war criminal. He was one of the most powerful figures in the Nazi Party, which ruled Germany from 1933 to 1945. A veteran World War I fighter pilot ace, Göring was a recipient of the ("The Blue Max"). He was the last commander of ''Jagdgeschwader'' 1 (Jasta 1), the fighter wing once led by Manfred von Richthofen. An early member of the Nazi Party, Göring was among those wounded in Adolf Hitler's failed Beer Hall Putsch in 1923. While receiving treatment for his injuries, he developed an addiction to morphine which persisted until the last year of his life. After Hitler became Chancellor of Germany in 1933, Göring was named as minister without portfolio in the new government. One of his first acts as a cabinet minister was to oversee the creation of the Gestapo, which he ceded to Heinrich Himmler in 1934. Following the establishment of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Warning Radar
An early-warning radar is any radar system used primarily for the long-range detection of its targets, i.e., allowing defences to be alerted as ''early'' as possible before the intruder reaches its target, giving the air defences the maximum time in which to operate. This contrasts with systems used primarily for tracking or gun laying, which tend to offer shorter ranges but offer much higher accuracy. EW radars tend to share a number of design features that improve their performance in the role. For instance, EW radar typically operates at lower frequencies, and thus longer wavelengths, than other types. This greatly reduces their interaction with rain and snow in the air, and therefore improves their performance in the long-range role where their coverage area will often include precipitation. This also has the side-effect of lowering their optical resolution, but this is not important in this role. Likewise, EW radars often use much lower pulse repetition frequency to maximi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain Home
Chain Home, or CH for short, was the codename for the ring of coastal Early Warning radar stations built by the Royal Air Force (RAF) before and during the Second World War to detect and track aircraft. Initially known as RDF, and given the official name Air Ministry Experimental Station Type 1 (AMES Type 1) in 1940, the radar units themselves were also known as Chain Home for most of their life. Chain Home was the first early warning radar network in the world, and the first military radar system to reach operational status. Its effect on the outcome of the war made it one of the most powerful weapons of what is today known as the "Wizard War". In late 1934, the Tizard Committee asked radio expert Robert Watson-Watt to comment on the repeated claims of radio death rays and reports suggesting Germany had built some sort of radio weapon. His assistant, Arnold Wilkins, demonstrated that a death ray was impossible but suggested radio could be used for long-range detection. In Febr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LZ 130 Graf Zeppelin II
The ''Graf Zeppelin'' (; Registration: D-LZ 130) was the last of the German rigid airships built by Zeppelin Luftschiffbau during the period between the World Wars, the second and final ship of the ''Hindenburg'' class, and the second zeppelin to carry the name "Graf Zeppelin" (after the LZ 127) and thus often referred to as ''Graf Zeppelin II''. Due to the United States refusal to export helium to Germany, the ''Graf Zeppelin II'' was filled with hydrogen and therefore never carried commercial passengers. It made 30 flights over 11 months in 1938–39, many being propaganda publicity flights; but staff of the Reich Air Ministry were aboard to conduct radio surveillance and measurements. The airship, along with its LZ 127 namesake were both scrapped in April 1940, and their duralumin framework salvaged to build aircraft for the Luftwaffe. Design and development The ''Graf Zeppelin II'' was virtually identical to the ''Hindenburg'', and was originally designed to use hydro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
