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  2. Blackboard - Wikipedia

    en.wikipedia.org/wiki/Blackboard

    Uses. Reusable writing surface on which text or drawings are made. A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.

  3. UST Angelicum College - Wikipedia

    en.wikipedia.org/wiki/UST_Angelicum_College

    Location in Metro Manila. The UST Angelicum College is a private Catholic basic and higher education institution run by the Philippine Dominican Province of the Order of Preachers located in Quezon City, Metro Manila, Philippines. It was founded in July 1972 by the Dominican priest Rev. Fr. Rogelio B. Alarcon, OP who became its first rector.

  4. Turkey - Wikipedia

    en.wikipedia.org/wiki/Turkey

    Turkey, officially the Republic of Türkiye, is a country mainly in Anatolia in West Asia, with a smaller part called East Thrace in Southeast Europe.It borders the Black Sea to the north; Georgia, Armenia, Azerbaijan, and Iran to the east; Iraq, Syria, and the Mediterranean Sea (and Cyprus) to the south; and the Aegean Sea, Greece, and Bulgaria to the west.

  5. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    A black hole is a region of spacetime where gravity is so strong that nothing, including light and other electromagnetic waves, is capable of possessing enough energy to escape it. [2] Einstein 's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

  6. Product and manufacturing information - Wikipedia

    en.wikipedia.org/wiki/Product_and_manufacturing...

    Product and manufacturing information, also abbreviated PMI, conveys non-geometric attributes in 3D computer-aided design (CAD) and Collaborative Product Development systems necessary for manufacturing product components and assemblies. PMI may include geometric dimensions and tolerances, 3D annotation (text) and dimensions, surface finish, and ...

  7. Types of Psoriasis: Symptoms, Triggers, & Treatments - WebMD

    www.webmd.com/skin-problems-and-treatments/...

    The symptoms of plaque psoriasis include raised, inflamed, red skin covered with silvery, white scales. On darker skin, the patches may be purplish with gray scales. These patches may itch and ...

  8. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    This is sometimes referred to as a unit of standard atmospheres (atm). Total atmospheric mass is 5.1480×10 18 kg (1.135×10 19 lb), [41] about 2.5% less than would be inferred from the average sea level pressure and Earth's area of 51007.2 megahectares, this portion being displaced by Earth's mountainous terrain.

  9. Costa Rica - Wikipedia

    en.wikipedia.org/wiki/Costa_Rica

    Costa Rica ( UK: / ˌkɒstə ˈriːkə /, US: / ˌkoʊstə -/ ⓘ; Spanish: [ˈkosta ˈrika]; literally "Rich Coast"), officially the Republic of Costa Rica, [11] is a country in the Central American region of North America. Costa Rica is bordered by Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the ...