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  2. 2,4-Dichlorophenoxyacetic acid - Wikipedia

    en.wikipedia.org/wiki/2,4-Dichlorophenoxyacetic_acid

    2,4-D was first reported in 1944 by Franklin D-Jones at the C. B. Dolge Company in Connecticut. [5] The biological activity of 2,4-D as well as the similar hormone herbicides 2,4,5-T, and MCPA were discovered during World War II, a case of multiple discovery by four groups working independently under wartime secrecy in the United Kingdom and the United States: William G. Templeman and ...

  3. USB4 - Wikipedia

    en.wikipedia.org/wiki/USB4

    USB4 has, from the start, referenced the PCI Express Specification Revision 4 and with USB4 Version 2.0 added references to PCI Express Specification Revision 5.0 PCIe tunneling has had a significant limitation in USB4 Version 1.0 and also Thunderbolt 3: PCIe Express has a variable maximum payload size , which applies end-to-end to a transmission.

  4. The General (locomotive) - Wikipedia

    en.wikipedia.org/wiki/The_General_(locomotive)

    Western & Atlantic Railroad #3 General is a 4-4-0 "American" type steam locomotive built in 1855 by the Rogers, Ketchum & Grosvenor in Paterson, New Jersey for the Western & Atlantic Railroad, best known as the engine stolen by Union spies in the Great Locomotive Chase, an attempt to cripple the Confederate rail network during the American Civil War.

  5. Four fours - Wikipedia

    en.wikipedia.org/wiki/Four_fours

    For example, when d=4, the hash table for two occurrences of d would contain the key-value pair 8 and 4+4, and the one for three occurrences, the key-value pair 2 and (4+4)/4 (strings shown in bold). The task is then reduced to recursively computing these hash tables for increasing n, starting from n=1 and continuing up to e.g. n=4.

  6. Jupiter (locomotive) - Wikipedia

    en.wikipedia.org/wiki/Jupiter_(locomotive)

    The Jupiter (officially known as Central Pacific Railroad #60) was a 4-4-0 steam locomotive owned by the Central Pacific Railroad.It made history when it joined the Union Pacific No. 119 at Promontory Summit, Utah, during the golden spike ceremony commemorating the completion of the first transcontinental railroad in 1869.

  7. Portal Revolution - Wikipedia

    en.wikipedia.org/wiki/Portal_Revolution

    Portal: Revolution is a 2024 free modification for Portal 2 created by Second Face Software. As with the official Portal games , it is a puzzle-platform game that involves using portals to navigate test chambers.

  8. 2,4-Dinitrophenylhydrazine - Wikipedia

    en.wikipedia.org/wiki/2,4-Dinitrophenylhydrazine

    2,4-Dinitrophenylhydrazine (2,4-DNPH or DNPH) is the organic compound C 6 H 3 (NO 2) 2 NHNH 2. DNPH is a red to orange solid. It is a substituted hydrazine. The solid is relatively sensitive to shock and friction. For this reason DNPH is usually handled as a wet powder. DNPH is a precursor to the drug Sivifene.

  9. Portal 2 - Wikipedia

    en.wikipedia.org/wiki/Portal_2

    Portal Reloaded is a single-player mod for Portal 2 created by Jannis Brinkmann and was released on April 19, 2021, exactly 10 years after the release of Portal 2. [274] The mod gives players the ability to fire a third portal, the "time portal", to travel between the present and future versions of each test chamber.