Liliputin -6003

Mr. Trump is nuts about rare-earth elements, making sence of decency almost extinct ... "
Joseph Nye Welch

Liliputins. What, the heck, is this?
http://stihi.ru/2025/03/08/5867

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Rare-earth element

From Wikipedia, the free encyclopedia

The rare-earth elements (REE), also called the rare-earth metals or rare earths, and sometimes the lanthanides or lanthanoids (although scandium and yttrium, which do not belong to this series, are usually included as rare earths),[1] are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. Compounds containing rare earths have diverse applications in electrical and electronic components, lasers, glass, magnetic materials, and industrial processes. The term "rare-earth" is a misnomer because they are not actually scarce, but historically it took a long time to isolate these elements.[2][3] They are relatively plentiful in the entire Earth's crust (cerium being the 25th-most-abundant element at 68 parts per million, more abundant than copper), but in practice they are spread thinly as trace impurities, so to obtain rare earths at usable purity requires processing enormous amounts of raw ore at great expense.

Scandium and yttrium are considered rare-earth elements because they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties, but have different electrical and magnetic properties.[4][5]

These metals tarnish slowly in air at room temperature and react slowly with cold water to form hydroxides, liberating hydrogen. They react with steam to form oxides and ignite spontaneously at a temperature of 400 °C (752 °F). These elements and their compounds have no biological function other than in several specialized enzymes, such as in lanthanide-dependent methanol dehydrogenases in bacteria.[6] The water-soluble compounds are mildly to moderately toxic, but the insoluble ones are not.[7] All isotopes of promethium are radioactive, and it does not occur naturally in the earth's crust, except for a trace amount generated by spontaneous fission of uranium-238. They are often found in minerals with thorium, and less commonly uranium.

Because of their geochemical properties, rare-earth elements are typically dispersed and not often found concentrated in rare-earth minerals. Consequently, economically exploitable ore deposits are sparse.[8] The first rare-earth mineral discovered (1787) was gadolinite, a black mineral composed of cerium, yttrium, iron, silicon, and other elements. This mineral was extracted from a mine in the village of Ytterby in Sweden. Four of the rare-earth elements bear names derived from this single location


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extinct

ex·tinct

adjective
(of a species, family, or other group of animals or plants) having no living members; no longer in existence:
"trilobites and dinosaurs are extinct" · "the red wolf became extinct in the wild in 1980" · "we might one day resurrect extinct species"
Similar:
vanished
lost
dead
defunct
destroyed

no longer in existence:
"an extinct language" · "the sort of girls' school that is now extinct"
(of a title of nobility) having no valid claimant:
"the baronetcy became extinct"
(of a volcano) not having erupted in recorded history:
"the islands are the remains of extinct volcanoes"
Similar:
inactive
old
former
no longer active
Translate extinct to

German
ausgestorben

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Joseph Nye Welch (October 22, 1890 – October 6, 1960) was an American lawyer who served as the chief counsel for the United States Army while it was under investigation for Communist activities by Senator Joseph McCarthy's Senate Permanent Subcommittee on Investigations, an investigation known as the Army–McCarthy hearings. His confrontation with McCarthy during the hearings, in which he asked McCarthy "Have you no sense of decency, sir, at long last?", is seen as a turning point in the history of McCarthyism.