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  2. Twelve-Mile Circle - Wikipedia

    en.wikipedia.org/wiki/Twelve-Mile_Circle

    The Twelve-Mile Circle Diagram of the Twelve-Mile Circle, the Mason-Dixon Line, and The Wedge. The diagram shows the survey lines involved in the disputes, not current borders. The Twelve-Mile Circle is an approximately circular arc that forms most of the boundary between Delaware and Pennsylvania. It is a combination of different circular arcs ...

  3. Mason–Dixon line - Wikipedia

    en.wikipedia.org/wiki/Mason–Dixon_line

    Dan Seals sang "Mason Dixon line" and the song symbolically references the line. [52] GZA references the "Mason-Dixon Line" in the closing words of his feature verse on Raekwon's song "Guillotine (Swords)" from his debut 1995 album Only Built 4 Cuban Linx. [53] Tom Lehrer references the Mason–Dixon line in his song "I Wanna Go Back to Dixie ...

  4. Category:Mason–Dixon line - Wikipedia

    en.wikipedia.org/wiki/Category:Mason–Dixon_line

    Print/export Download as PDF; Printable version; In other projects ... Pages in category "Mason–Dixon line" The following 12 pages are in this category, out of 12 ...

  5. Nominal Pipe Size - Wikipedia

    en.wikipedia.org/wiki/Nominal_Pipe_Size

    Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

  6. Ruled paper - Wikipedia

    en.wikipedia.org/wiki/Ruled_paper

    Initially, paper was ruled by hand, sometimes using templates. [1] Scribes could rule their paper using a "hard point," a sharp implement which left embossed lines on the paper without any ink or color, [2] or could use "metal point," an implement which left colored marks on the paper, much like a graphite pencil, though various other metals were used.

  7. Boundary layer thickness - Wikipedia

    en.wikipedia.org/wiki/Boundary_layer_thickness

    The boundary layer thickness, , is the distance normal to the wall to a point where the flow velocity has essentially reached the 'asymptotic' velocity, .Prior to the development of the Moment Method, the lack of an obvious method of defining the boundary layer thickness led much of the flow community in the later half of the 1900s to adopt the location , denoted as and given by

  8. Use This Age Chart to Date Your Vintage Ball Mason Jars - AOL

    www.aol.com/lifestyle/age-chart-date-vintage...

    Mason jars were manufactured in many different colors, including clear, pale blue, yellow, amber, olive and various other greens. (In the early 1900s, people thought darker glass helped prevent ...

  9. Demarcation line - Wikipedia

    en.wikipedia.org/wiki/Demarcation_line

    The Line of Contact, final positions of the armies of the Western Allies and Soviets, May 8, 1945. The Curzon Line was a demarcation line proposed in 1920 by British Foreign Secretary Lord Curzon as a possible armistice line between Poland to the west and the Soviet republics to the east during the Polish-Soviet War of 1919–21.