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  2. Utility frequency - Wikipedia

    en.wikipedia.org/wiki/Utility_frequency

    Utility frequency. The waveform of 230 V and 50 Hz compared with 120 V and 60 Hz. The utility frequency, (power) line frequency ( American English) or mains frequency ( British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user.

  3. Yield to maturity - Wikipedia

    en.wikipedia.org/wiki/Yield_to_maturity

    The annual bond coupon should increase from $5 to $5.56 but the coupon can't change as only the bond price can change. So the bond is priced approximately at $100 - $0.56 or $99.44 . If the bond is held until maturity, the bond will pay $5 as interest and $100 par value for the matured bond.

  4. Nestlé - Wikipedia

    en.wikipedia.org/wiki/Nestlé

    1866–1900: Founding and early years. Henri Nestlé (1814–1890), a German-born Swiss confectioner, was the founder of Nestlé and one of the main creators of condensed milk. Nestlé's origin dates back to the 1860s when two separate Swiss enterprises were founded that would later form Nestlé.

  5. Modafinil - Wikipedia

    en.wikipedia.org/wiki/Modafinil

    IC 50 a IC 50 a: Human Rat Human Rat: NET Tooltip Norepinephrine transporter > 10 μM > 92 μM 35.6 μM 136 μM: K i K i IC 50 a IC 50 a: Human Rat Human Rat: SERT Tooltip Serotonin transporter > 10 μM 46.6 μM > 500 μM > 50 μM: K i K i IC 50 a IC 50 a: Human Rat Human Rat: D 2 > 10 μM 16 μM b 120 μM b: K i K i EC 50 a

  6. Solar eclipse - Wikipedia

    en.wikipedia.org/wiki/Solar_eclipse

    An eclipse is a natural phenomenon. In some ancient and modern cultures, solar eclipses were attributed to supernatural causes or regarded as bad omens. Astronomers' predictions of eclipses began in China as early as the 4th century BC; eclipses hundreds of years into the future may now be predicted with high accuracy.

  7. Cameroon - Wikipedia

    en.wikipedia.org/wiki/Cameroon

    The life expectancy was 62.3 years (60.6 years for males and 64 years for females). Cameroonian women on Women's Day Celebration. Cameroon has slightly more women (50.5%) than men (49.5%). Over 60% of the population is under age 25. People over 65 years of age account for only 3.11% of the total population.