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  2. List of idioms of improbability - Wikipedia

    en.wikipedia.org/wiki/List_of_idioms_of...

    The second one is also used to denote something unexpected/untimely as much as improbable. Hungarian – The two most often used expressions are majd ha piros hó esik ("when red snow falls"), and majd ha cigánygyerekek potyognak az égből ("When gypsy children are streaming from the sky").

  3. Unobtainium - Wikipedia

    en.wikipedia.org/wiki/Unobtainium

    Unobtainium (or unobtanium) is a term used in fiction, engineering, and common situations for a material ideal for a particular application but impractically difficult or impossible to obtain. Unobtainium originally referred to materials that do not exist at all, but can also be used to describe real materials that are unavailable due to ...

  4. List of chemical compounds with unusual names - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_compounds...

    Chemical nomenclature, replete as it is with compounds with very complex names, is a repository for some names that may be considered unusual. A browse through the Physical Constants of Organic Compounds in the CRC Handbook of Chemistry and Physics (a fundamental resource) will reveal not just the whimsical work of chemists, but the sometimes peculiar compound names that occur as the ...

  5. Synonym - Wikipedia

    en.wikipedia.org/wiki/Synonym

    Synonym. A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are synonymous. The standard test for synonymy is substitution: one ...

  6. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    The study of the absorption or release of heat during a chemical reaction. thermodynamic stability. The condition of a system being in its lowest energy state with its environment (equilibrium). thermodynamics. The study of the effects of changing temperature, volume or pressure (or work, heat, and energy) on a macroscopic scale.

  7. Ivory - Wikipedia

    en.wikipedia.org/wiki/Ivory

    Ivory is a hard, white material from the tusks (traditionally from elephants) and teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mammals is the same, regardless of the species of origin, but ivory contains structures of mineralised collagen. [1]

  8. 9 Rare Coins That Can Make You Rich - AOL

    www.aol.com/9-rare-coins-rich-120009603.html

    1983 1C Doubled Die Reverse Penny. Auction record: $7,050. This rare coin sold for over $7,000 at an auction in 2017 as it has become a collectible item due to the fact that there’s no mint mark ...

  9. List of fictional elements, materials, isotopes and subatomic ...

    en.wikipedia.org/wiki/List_of_fictional_elements...

    Very rare and valuable element with atoms big enough to be seen by naked eye. In the episode "The Lesser of Two Evils", a Jumbonium atom is used in 3001 for the Miss Universe competition, where it hovers above the prized tiara. According to Bob Barker (in the episode), the atom is worth $200,000 or, at least, somewhere between $200,000 and ...