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The High-frequency Active Auroral Research Program ( HAARP) is a University of Alaska Fairbanks program which researches the ionosphere – the highest, ionized part of Earth's atmosphere . The most prominent instrument at HAARP is the Ionospheric Research Instrument (IRI), a high-power radio frequency transmitter facility operating in the high ...
The European Organization for Nuclear Research, known as CERN ( / sɜːrn /; French pronunciation: [sɛʁn]; Conseil européen pour la Recherche nucléaire ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Geneva, on the ...
- 29 September 1954; 69 years ago
- Meyrin, Geneva, Switzerland
In linear algebra, a rotation matrix is a transformation matrix that is used to perform a rotation in Euclidean space. For example, using the convention below, the matrix. rotates points in the xy plane counterclockwise through an angle θ about the origin of a two-dimensional Cartesian coordinate system.
Unidentified flying object. An unidentified flying object ( UFO ), or unidentified anomalous phenomenon [a] ( UAP ), is any perceived airborne, submerged or transmedium phenomenon that cannot be immediately identified or explained. [2] Upon investigation, most UAPs are identified as known objects or atmospheric phenomena, while a small number ...
PubMed. PubMed is a free database including primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintains the database as part of the Entrez system of information retrieval.
- January 1996; 27 years ago
- pubmed.ncbi.nlm.nih.gov
Foremost Group is a privately held American shipping company, headquartered in New York City. It operates globally, chartering vessels to companies in the dry bulk shipping industry. Its clients include Bunge (St. Louis, MO), Cargill (Minnetonka, MN), Dreyfus (Rotterdam), MOL (Tokyo) and NYK Line (Tokyo). ...
The Chicxulub crater ( IPA: [t͡ʃikʃuˈluɓ] ⓘ cheek-shoo-LOOB) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is offshore, but the crater is named after the onshore community of Chicxulub Pueblo. [3] It was formed slightly over 66 million years ago when a large meteorite, about ten kilometers (six miles ...
