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  2. Macedonian Academy of Sciences and Arts - Wikipedia

    en.wikipedia.org/wiki/Macedonian_Academy_of...

    The Academy of Sciences and Arts was established by the Socialist Republic of Macedonia's assembly on 23 February 1967 as the highest scientific, scholarly and artistic institution in the country with the aim of monitoring and stimulating the sciences and arts.

  3. Sixth grade - Wikipedia

    en.wikipedia.org/wiki/Sixth_grade

    Sixth grade (also 6th grade or grade 6) is the sixth year of formal or compulsory education.Students in sixth grade are usually 11-12 years old. It is commonly the first or second grade of middle school or the last grade of elementary school, and the sixth school year since kindergarten.

  4. Density - Wikipedia

    en.wikipedia.org/wiki/Density

    The compressibility for a typical liquid or solid is 10 −6 bar −1 (1 bar = 0.1 MPa) and a typical thermal expansivity is 10 −5 K −1. This roughly translates into needing around ten thousand times atmospheric pressure to reduce the volume of a substance by one percent.

  5. Hepatic portal system - Wikipedia

    en.wikipedia.org/wiki/Hepatic_portal_system

    Portal hypertension is a condition in which the blood pressure of the portal venous system is too high. It is often the result of cirrhosis of the liver. Liver cirrhosis can lead to increased intrahepatic vascular resistance and vasodilation of portal system arteries, both of which increase pressure in the portal vein. [ 4 ]

  6. Mass fraction (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Mass_fraction_(chemistry)

    A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1%" or "1% m/v" (mass/volume). This is incorrect because the unit "%" can only be used for dimensionless quantities.

  7. Ti-6Al-4V - Wikipedia

    en.wikipedia.org/wiki/Ti-6Al-4V

    Ti-6Al-4V (UNS designation R56400), also sometimes called TC4, Ti64, [1] or ASTM Grade 5, is an alpha-beta titanium alloy with a high specific strength and excellent corrosion resistance.

  8. Portal:Ancient Greece/DYK/6 - Wikipedia

    en.wikipedia.org/wiki/Portal:Ancient_Greece/DYK/6

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  9. Portal : Africa/Did you know/6 - Wikipedia

    en.wikipedia.org/wiki/Portal:Africa/Did_you_know/6

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