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  2. AP United States Government and Politics - Wikipedia

    en.wikipedia.org/wiki/AP_United_States...

    Advanced Placement (AP) United States Government and Politics (often shortened to AP Gov or AP GoPo and sometimes referred to as AP American Government or simply AP Government) is a college-level course and examination offered to high school students through the College Board's Advanced Placement Program.

  3. Scientific notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_notation

    Any real number can be written in the form m × 10 ^ n in many ways: for example, 350 can be written as 3.5 × 10 2 or 35 × 10 1 or 350 × 10 0. In normalized scientific notation (called "standard form" in the United Kingdom), the exponent n is chosen so that the absolute value of m remains at least one but less than ten ( 1 ≤ | m | < 10 ).

  4. Polar aprotic solvent - Wikipedia

    en.wikipedia.org/wiki/Polar_aprotic_solvent

    CH 2 Cl 2: 39.6 °C 9.08 1.327 g/cm 3: 1.6 low boiling point dimethylacetamide (CH 3) 2 NCOCH 3: 165 °C 37.8 0.94 g/cm 3: 3.72 reacts with strong acids and bases dimethylformamide (CH 3) 2 NCHO 153 °C 36.7 0.95 g/cm 3: 3.86 reacts with strong acids and bases N-methylpyrrolidone: CH 3 NCOC 3 H 6: 203 °C 32.3 1.028 g/cm 3: 4.09 high boiling ...

  5. Six degrees of separation - Wikipedia

    en.wikipedia.org/wiki/Six_degrees_of_separation

    Thus if N = 300,000,000 (90% of the US population, with 10% of population being too young to participate) and K = 30 then Degrees of Separation = APL = 19.5 / 3.4 = 5.7 and if N = 7,200,000,000 (90% of the world population, with 10% of population being too young to participate) and K = 30 then Degrees of Separation = APL = 22.7 / 3.4 = 6.7.

  6. Higgs boson - Wikipedia

    en.wikipedia.org/wiki/Higgs_boson

    The Higgs boson, sometimes called the Higgs particle, [9] [10] is an elementary particle in the Standard Model of particle physics produced by the quantum excitation of the Higgs field, [11] [12] one of the fields in particle physics theory. [12]

  7. Surreal number - Wikipedia

    en.wikipedia.org/wiki/Surreal_number

    A visualization of the surreal number tree. In mathematics, the surreal number system is a totally ordered proper class containing not only the real numbers but also infinite and infinitesimal numbers, respectively larger or smaller in absolute value than any positive real number.

  8. Fusible alloy - Wikipedia

    en.wikipedia.org/wiki/Fusible_alloy

    Fusible alloys are typically made from low melting metals. There are 14 low melting metallic elements that are stable for practical handling. These are in 2 distinct groups: The 5 alkali metals have 1 s electron and melt between +181 (Li) and +28 (Cs) Celsius; The 9 poor metals have 10 d electrons and from none (Zn, Cd, Hg) to three (Bi) p electrons, they melt between -38 (Hg) and +419 (Zn ...

  9. Birmingham - Wikipedia

    en.wikipedia.org/wiki/Birmingham

    Some 11.2 days each year rose to a temperature of 25.1 °C (77.2 °F) or above [135] and 51.6 nights reported an air frost. [136] The highest recorded temperature recorded at the Edgbaston Campus was 37.4 °C (99.3 °F), [ 137 ] whilst a temperature of 37.0 °C (98.6 °F) was recorded at Birmingham Airport on the city's eastern edge, both ...