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  2. Frederick Grinnell - Wikipedia

    en.wikipedia.org/wiki/Frederick_Grinnell

    Grinnell licensed a sprinkler device patented by Henry S. Parmalee, then worked to improve the invention, and in 1881 patented the automatic sprinkler that bears his name. [2] He continued to improve the device and in 1890 invented the glass disc sprinkler, essentially the same as that in use today. Such sprinklers are called le Grinnell in ...

  3. EMC E1 - Wikipedia

    en.wikipedia.org/wiki/EMC_E1

    The EMC E1 was an early passenger-train diesel locomotive developing 1,800 hp, with an A1A-A1A wheel arrangement, and manufactured by Electro-Motive Corporation of La Grange, Illinois. They were built during 1937 and 1938 for the Atchison, Topeka and Santa Fe Railway for a new generation of diesel -powered streamlined trains. 8 cab-equipped ...

  4. Inescutcheon - Wikipedia

    en.wikipedia.org/wiki/Inescutcheon

    In English heraldry the husband of a heraldic heiress, the sole daughter and heiress of an armigerous man (i.e. a lady without any brothers), rather than impaling his wife's paternal arms as is usual, must place her paternal arms in an escutcheon of pretence in the centre of his own shield as a claim ("pretence") to be the new head of his wife ...

  5. Viking Age arms and armour - Wikipedia

    en.wikipedia.org/wiki/Viking_Age_arms_and_armour

    Viking landing at Dublin, 841, by James Ward (1851-1924). Knowledge about military technology of the Viking Age (late 8th to mid-11th century Europe) is based on relatively sparse archaeological finds, pictorial representations, and to some extent on the accounts in the Norse sagas and laws recorded in the 12th–14th centuries.

  6. Escutcheon - Wikipedia

    en.wikipedia.org/wiki/Escutcheon

    Escutcheon may refer to: Escutcheon (heraldry), a shield or shield-shaped emblem, displaying a coat of arms; Escutcheon (furniture), a metal plate that surrounds a keyhole or lock cylinder on a door (in medicine) the distribution of pubic hair (in archaeology) decorated discs supporting the handles on hanging bowls

  7. Solar Forma's first E-Cacia solar tree planted in Boyd Park

    www.aol.com/news/solar-formas-first-e-cacia...

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  8. Early thermal weapons - Wikipedia

    en.wikipedia.org/wiki/Early_thermal_weapons

    The Siege and Destruction of Jerusalem by the Romans Under the Command of Titus, A.D. 70, by David Roberts (1850), shows the city burning. Early thermal weapons, which used heat or burning action to destroy or damage enemy personnel, fortifications or territories, were employed in warfare during the classical and medieval periods (approximately the 8th century BC until the mid-16th century AD).

  9. K-factor (fire protection) - Wikipedia

    en.wikipedia.org/wiki/K-factor_(fire_protection)

    In fire protection engineering, the K-factor formula is used to calculate the volumetric flow rate from a nozzle. Spray nozzles can for example be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system nozzles.

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