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Electron holography was invented by Dennis Gabor to improve the resolution and avoid the aberrations of the transmission electron microscope. Today it is commonly used to study electric and magnetic fields in thin films, as magnetic and electric fields can shift the phase of the interfering wave passing through the sample. [ 45 ]
The +1 and +3 oxidation states are less common, and are often stabilized by metal bonding in bimetallic (or polymetallic) species. Tetracoordinate platinum(II) compounds tend to adopt 16-electron square planar geometries. Although elemental platinum is generally unreactive, it is attacked by chlorine, bromine, iodine, and sulfur.
Download the file enwiki-YYYYMMDD-pages-articles.xml.bz2 from the most recent dump. For example, on your.org , go to directory YYYYMMDD for the most recent date (for example 20171020 ), and retrieve the requested file (for example enwiki- 20171020 -pages-articles.xml.bz2 ).
Download the file enwiki-YYYYMMDD-pages-articles.xml.bz2 from the most recent dump. For example, on your.org , go to directory YYYYMMDD for the most recent date (for example 20171020 ), and retrieve the requested file (for example enwiki- 20171020 -pages-articles.xml.bz2 ).
This is an example of a "shared watchlist", sorted by alphabetical order. Once completed, it will contain all Dungeons & Dragons related articles, including all articles, categories, redirects, lists, images, unassessed articles, disambiguation pages, and WikiProject:Dungeons & Dragons related pages (redlinks are included on purpose for either deleted articles or Needed-class articles, and ...
Paris (French pronunciation: ⓘ) is the capital and largest city of France.With an estimated population of 2,048,472 residents in January 2025 [3] in an area of more than 105 km 2 (41 sq mi), [4] Paris is the fourth-most populous city in the European Union, the ninth-most populous city in Europe and the 30th most densely populated city in the world in 2022. [5]
Newport News (/ ˌ n uː p ɔːr t-,-p ər t-/) [7] is an independent city in southeastern Virginia, United States.At the 2020 census, the population was 186,247. [6] Located in the Hampton Roads region, it is the fifth-most populous city in Virginia and 140th-most populous city in the United States.
The symmetry of a carbon dioxide molecule is linear and centrosymmetric at its equilibrium geometry. The length of the carbon–oxygen bond in carbon dioxide is 116.3 pm, noticeably shorter than the roughly 140 pm length of a typical single C–O bond, and shorter than most other C–O multiply bonded functional groups such as carbonyls. [19]