Permalloy

•  Cobalt

  Cobalt is a hard, lustrous, gray metal, a chemical element with symbol Co and atomic number 27. Cobalt-based colors and pigments have been used since ancient times for jewelry and paints, and miners have long used the name kobold ore for some minerals. Cobalt occurs in various metallic-lustered ores, for example cobaltite (CoAsS), but is mainly produced as a by-product of copper and nickel mining.

  

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  28.6%
  

  71.4%
  
•  Dysprosium

  Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster. Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of 7 isotopes, the most abundant of which is Dy.

  

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•  Ferromagnetism

  Ferromagnetism is the basic mechanism by which certain materials form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism is the only type that can produce forces strong enough to be felt, and is responsible for the common phenomena of magnetism encountered in everyday life. One example is refrigerator magnets.

  

  33.3%
  

  33.3%
  

  33.3%
  
•  Gadolinium

  Gadolinium is a chemical element that has the symbol Gd and atomic number 64. It is a silvery-white, malleable and ductile rare-earth metal. Gadolinium has exceptionally high absorption of neutrons and therefore is used for shielding in neutron radiography and in nuclear reactors. Because of its paramagnetic properties, solutions of organic gadolinium complexes and gadolinium compounds are the most popular intravenous MRI contrast agents in medical magnetic resonance imaging.

  

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•  Iron

  Iron is a metallic chemical element with the symbol Fe and atomic number 26. Iron is a group 8 and period 4 element and is therefore classified as a transition metal. Iron and iron alloys are by far the most common metals and the most common ferromagnetic materials in everyday use. Fresh iron surfaces are lustrous and silvery-grey in color, but oxidize in air to form a red or brown coating of ferric oxide or rust.

  

  50.0%
  

  16.7%
  

  33.3%
  
•  Nickel

  Nickel is a chemical element, with the chemical symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. It is one of the four ferromagnetic elements at about room temperature, the other three being iron, cobalt and gadolinium. Its use has been traced as far back as 3500 BC, but it was first isolated and classified as a chemical element in 1751 by Axel Fredrik Cronstedt, who initially mistook its ore for a copper mineral.

  

  100.0%
  

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•  Magnetite

  Magnetite is a ferrimagnetic mineral with chemical formula Fe3O4, one of several iron oxides and a member of the spinel group. The chemical IUPAC name is iron(II,III) oxide and the common chemical name ferrous-ferric oxide. The formula for magnetite may also be written as FeO·Fe2O3, which is one part wüstite (FeO) and one part hematite (Fe2O3). This refers to the different oxidation states of the iron in one structure, not a solid solution.

  

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•  Neodymium magnet

  A neodymium magnet (also known as NdFeB, NIB, or Neo magnet), a type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure. This material is currently the strongest type of permanent magnet.

  

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•  Samarium-cobalt magnet

  

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•  Rare-earth magnet

  Rare-earth magnets are strong permanent magnets made from alloys of rare earth elements. Developed in the 1970s and 80s, rare-earth magnets are the strongest type of permanent magnets made, substantially stronger than ferrite or alnico magnets. The magnetic field typically produced by rare-earth magnets can be in excess of 1.4 teslas, whereas ferrite or ceramic magnets typically exhibit fields of 0.5 to 1 tesla. There are two types: neodymium magnets and samarium-cobalt magnets.

  

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• Ferromagnetic materials by likeorhate
• Magnetic alloys by likeorhate
• Nickel alloys by likeorhate

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•  Sutro Tower

  Sutro Tower is a three-pronged antenna tower on Clarendon Heights (a hill just southeast of, and connected to, Mount Sutro) in central San Francisco, California. It is a prominent part of the city skyline and a landmark for city residents and visitors. However, many local people opposed the tower even before it was completed, including criticism of the aesthetic effect the tower would have on the rest of San Francisco.

  

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•  WrestleMania VII

  WrestleMania VII was the seventh annual WrestleMania professional wrestling pay-per-view event produced by the World Wrestling Federation (WWF). It took place on March 24, 1991 at the Los Angeles Memorial Sports Arena in Los Angeles, California. WrestleMania VII was originally supposed to be held at the Los Angeles Memorial Coliseum, but it was decided to move the event to the adjacent Los Angeles Memorial Sports Arena.

  

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•  Jazeera Airways

  Jazeera Airways is a low-fare airline based in Kuwait. It operates scheduled services to the Middle East. Its main base is Kuwait International Airport. The airline has grown since its launch to become Kuwait's second national airline and has been dynamic in popularizing low-cost carriers in the Middle East.

  

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•  Dudweiler

  Dudweiler is a town in the southwest of Germany, part of Saarbrücken, on the Sulzbach creek. In 977, Dudweiler was first mentioned in official documents of German Emperor Otto II as the location of a chapel (Duodonisvillare). The coal mining industry played an important role for the growth of Dudweiler until 1968 when the last mine was closed. Population: (2004) 29,094, (1905) 16,320, (1542) about 150.

  

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•  Leon Henryk Strasburger

  

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  40.7%