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  2. Dobsonian telescope - Wikipedia

    en.wikipedia.org/wiki/Dobsonian_telescope

    The result has been a proliferation of larger telescopes which would have been expensive to build or buy, and unwieldy to operate, using "traditional" construction methods. Whereas an 8 inch Newtonian telescope would have been considered large in the 1970s, today 16 inch systems are common, and huge 32 inch systems not all that rare. [36]

  3. 16-inch/50-caliber M1919 gun - Wikipedia

    en.wikipedia.org/wiki/16-inch/50-caliber_M1919_gun

    As 16-inch guns and a companion improved 6-inch gun were emplaced, older weapons were scrapped. About 21 16-inch gun batteries were completed 1941-44, but not all of these were armed. [17] With the war over in 1945, most of the remaining coast defense guns, including the recently emplaced 16-inch weapons, were scrapped by 1948.

  4. List of the largest cannon by caliber - Wikipedia

    en.wikipedia.org/wiki/List_of_the_largest_cannon...

    16"/50 caliber Mark 7 gun for the Iowa-class battleships: Naval gun: 1943 United States: Washington Navy Yard, Washington, D.C. 417 Project HARP 16.4 inch gun Research gun 1962-1968 United States Canada: Repurposed American 16 inch naval guns used for high-altitude atmosphere studies. 1 made, located in Barbados; never used in combat; 1 survive 406

  5. BL 16-inch Mk I naval gun - Wikipedia

    en.wikipedia.org/wiki/BL_16-inch_Mk_I_naval_gun

    An improved weapon, the BL 16-inch Mark II was designed for the Lion-class battleship which was a successor to the King George V class taking advantage of the larger weapon allowed under the London Naval Treaty from March 1938. This "new design" of 16-inch gun fired a shell that weighed 2,375 pounds (1,077 kg).

  6. The 6 most common headache types — and when to see a doctor

    www.aol.com/6-most-common-headache-types...

    Headaches are one of the most common medical conditions, with 96% of people having at least one in their lifetime, according to Cleveland Clinic. About 40% of people globally experience what are ...

  7. Why some Ohio school districts are arming teachers and staff ...

    www.aol.com/why-ohio-school-districts-arming...

    Over the last year, the number of school districts in Ohio that allow staff to be armed quadrupled, with 14% of the state's districts now participating.

  8. 16-inch/45-caliber gun - Wikipedia

    en.wikipedia.org/wiki/16-inch/45-caliber_gun

    The 16-inch gun was a built-up gun constructed in a length of 45 calibers. The Mark 1 had an A tube, jacket, liner, and seven hoops , four locking rings and a screw-box liner. When the gun was designed in August 1913 it was referred to as the "Type Gun (45 Cal.)" as an effort to conceal the gun's true size of 16 inches.

  9. We found the 50 best Christmas gifts for women in 2024 - AOL

    www.aol.com/lifestyle/best-christmas-gifts-women...

    This gift is expensive, don't get me wrong. It's $100 for one small container. But don't sleep on La Mer — this small, expensive cream has more than 8,000 reviews at Nordstrom alone.