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  2. Rare-earth element - Wikipedia

    en.wikipedia.org/wiki/Rare-earth_element

    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.

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

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

    Green liquid with symbol Ar and atomic number 7. Makes a compound that is corrosive to copper when mixed with Galine and Sanite, and a compound that produces clouds when exposed to air when mixed with Regalite. The real element 7 is nitrogen; and Ar = argon. Atium Mistborn: Metal. Forms the body and power of the shard Ruin. If an Allomancer ...

  4. Dial-up Internet access - Wikipedia

    en.wikipedia.org/wiki/Dial-up_Internet_access

    The V.42, V.42bis and V.44 standards allow modems to accept compressed data at a rate faster than the line rate. These algorithms use data compression to achieve higher throughput. For instance, a 53.3 kbit/s connection with V.44 can transmit up to 53.3 × 6 = 320 kbit/s if the offered data stream can be compressed that much.

  5. List of copper ores - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_ores

    Following is a list of minerals that serve as copper ores in the copper mining process: [1] Image Name Formula % Copper when pure Chalcopyrite: CuFeS 2: 34.5 Chalcocite:

  6. List of copper alloys - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_alloys

    The discovery and exploitation of the Bolivian tin belt in the 19th century made tin far cheaper, although forecasts for future supplies are less positive. There are as many as 400 different copper and copper alloy compositions loosely grouped into the categories: copper, high copper alloy, brasses, bronzes, cupronickel, copper–nickel–zinc ...

  7. Isotopes of copper - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_copper

    Isotopes of copper. Copper (29 Cu) has two stable isotopes, 63 Cu and 65 Cu, along with 28 radioisotopes. The most stable radioisotope is 67 Cu with a half-life of 61.83 hours. Most of the others have half-lives under a minute. Unstable copper isotopes with atomic masses below 63 tend to undergo β + decay, while isotopes with atomic masses ...

  8. Glossary of video game terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_video_game_terms

    2. The act of waiting around a rare mob or player's spawn point, usually in MMOs. This may be known as spawn-camping or spawn-trapping. capture the flag (CTF) A common game mode in multiplayer video games, where the goal is to capture and retrieve a flag from the opposing side's territory while defending the flag in one's own territory. carry

  9. List of Microsoft codenames - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_codenames

    Named after a fictional mineral from Minecraft. [62] [63] Santorini Windows 10X: Dropped Named after an island in Greece. Originally supposed to be a new OS to be released mid-late 2021, was eventually canceled. Some of its features were integrated into Windows 11 and other products. [64] Sun Valley — Windows 11 Named after Sun Valley, Idaho.