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  2. Normal distribution - Wikipedia

    en.wikipedia.org/wiki/Normal_distribution

    This result is known as Cramér's decomposition theorem, and is equivalent to saying that the convolution of two distributions is normal if and only if both are normal. Cramér's theorem implies that a linear combination of independent non-Gaussian variables will never have an exactly normal distribution, although it may approach it arbitrarily ...

  3. Gasoline - Wikipedia

    en.wikipedia.org/wiki/Gasoline

    Gasoline should ideally be stored in an airtight container (to prevent oxidation or water vapor mixing in with the gas) that can withstand the vapor pressure of the gasoline without venting (to prevent the loss of the more volatile fractions) at a stable cool temperature (to reduce the excess pressure from liquid expansion and to reduce the ...

  4. Nuclear power in the United States - Wikipedia

    en.wikipedia.org/wiki/Nuclear_power_in_the...

    In April 1957, the SM-1 Nuclear Reactor in Fort Belvoir, Virginia was the first atomic power generator to go online and produce electrical energy to the U.S. power grid. On May 26, 1958, the first commercial nuclear power plant in the United States, Shippingport Atomic Power Station , was opened by President Dwight D. Eisenhower as part of his ...

  5. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.

  6. Criticism of Amazon - Wikipedia

    en.wikipedia.org/wiki/Criticism_of_Amazon

    The company said that the €100,000 fine for each prohibited item shipped could result in billions of dollars in fines, even with a fraction of items misclassified. [318] After losing an appeal and reaching an agreement with labor unions for higher pay and staggered work schedules, the company reopened its French warehouses on May 19 of that year.