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  2. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    Abacus. An abacus (pl.: abaci or abacuses), also called a counting frame, is a hand -operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects).

  3. Jimmy Carter - Wikipedia

    en.wikipedia.org/wiki/Jimmy_Carter

    James Earl Carter Jr. (born October 1, 1924) is an American politician and humanitarian who served from 1977 to 1981 as the 39th president of the United States. A member of the Democratic Party, he served from 1963 to 1967 in the Georgia State Senate and from 1971 to 1975 as the 76th governor of Georgia. Carter is the longest-lived president in ...

  4. Doctor Who - Wikipedia

    en.wikipedia.org/wiki/Doctor_Who

    Doctor Who follows the adventures of the title character, a rogue Time Lord with somewhat unknown origins who goes by the name "the Doctor".The Doctor fled Gallifrey, the planet of the Time Lords, in a stolen TARDIS ("Time and Relative Dimension(s) in Space"), a time machine that travels by materialising into, and dematerialising out of, the time vortex.

  5. NTU method - Wikipedia

    en.wikipedia.org/wiki/NTU_Method

    The number of transfer units (NTU) method is used to calculate the rate of heat transfer in heat exchangers (especially parallel flow, counter current, and cross-flow exchangers) when there is insufficient information to calculate the log mean temperature difference (LMTD). Alternatively, this method is useful for determining the expected heat ...

  6. Matrix (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(mathematics)

    In mathematics, a matrix (pl.: matrices) is a rectangular array or table of numbers, symbols, or expressions, with elements or entries arranged in rows and columns, which is used to represent a mathematical object or property of such an object. For example, is a matrix with two rows and three columns.

  7. Air–fuel ratio - Wikipedia

    en.wikipedia.org/wiki/Air–fuel_ratio

    Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion),The air–fuel ratio determines whether a mixture is combustible at all, how much energy is being released ...

  8. highline.huffingtonpost.com

    highline.huffingtonpost.com/miracleindustry/...

    HIGHLIGHTS OF PRESCRIBING INFORMATION . These highlights do not include all the information needed to use RISPERDAL ® safely and effectively. See full prescribing information for

  9. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering ...