What is "langmuir"

Langmuir may refer to:

• Langmuir (crater), an impact crater on the Moon's far side
• Langmuir (journal), an academic journal on colloids, surfaces and interfaces, published by the American Chemical Society
• Langmuir (unit), a unit of exposure of an adsorbate/gas to a substrate used in surface science to study adsorption
• Langmuir Cove, a cove in the north end of Arrowsmith Peninsula, Graham Land, Antarctica

People:

• Alexander Langmuir (1910–1993), an American epidemiologist
• Charles Langmuir, a geologist and nephew of Irving Langmuir
• Gavin I. Langmuir (1924–2005), a Canadian veteran of World War II, an historian of anti-Semitism and a medievalist at Stanford University
• Irving Langmuir (1881–1957), an American Nobel Prize-winning chemist and physicist known for:
  • Irving Langmuir House
  • Langmuir circulation, a wind-driven ocean circulation
  • Langmuir equation, an equation that relates the coverage or adsorption of molecules on a solid surface to gas pressure or concentration of a medium above the solid surface at a fixed temperature
  • Langmuir probe
  • Langmuir wave, a rapid oscillation of the electron density in conducting media such as plasmas or metals

Langmuir is an impact crater on the Moon's far side. It is located in a region to the southwest of the Mare Orientale impact basin. Langmuir is bracketed between two larger craters, with Chebyshev to the west-northwest and Brouwer to the east. It partly overlaps the rims of these two craters, making it the youngest of the three. The outer rampart of ejecta from Langmuir partly covers the southeast interior floor of Chebyshev.

This crater has not been heavily eroded, and many of its original features remain intact and sharply defined. The rim to the west is somewhat disrupted due to having overlaid the rim of the larger Chebyshev. In a coincidental arrangement, a small crater is situated across the rim edge at the northern end of where it joins with Chebyshev, and a smaller crater lies at the southern end of this merger.

The inner wall of Langmuir contains some minor terrace structures and displays some appearance of slumping along the southwestern edge. The inner wall in the southern half of the crater is wider than elsewhere, and is nearly twice as wide as the inner wall along the northern edge. As a result, the interior floor is offset to the north. There is a central peak formation on the floor, but it is located to the northeast of the midpoint. The floor is relatively level in the western half, but more uneven in the east.

The langmuir (symbol: L) is a unit of exposure (or dosage) to a surface (e.g. of a crystal) and is used in ultra-high vacuum (UHV) surface physics to study the adsorption of gases. It is a practical unit, and is not dimensionally homogeneous, and so is only used in this one field. It is named after American physicist Irving Langmuir.

Langmuir is a peer-reviewed scientific journal that was established in 1985 and is published by the American Chemical Society. It covers research in the areas of surface and colloid chemistry.

The title honors Irving Langmuir, winner of the 1932 Nobel Prize for Chemistry. The founding editor-in-chief was Arthur W. Adamson.