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  2. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    Fractions such as 1 ⁄ 3 are displayed as decimal approximations, for example rounded to 0.33333333. Also, some fractions (such as 1 ⁄ 7, which is 0.14285714285714; to 14 significant figures) can be difficult to recognize in decimal form; as a result, many scientific calculators are able to work in vulgar fractions or mixed numbers.

  3. Golden ratio - Wikipedia

    en.wikipedia.org/wiki/Golden_ratio

    Exceptionally, the golden ratio is equal to the limit of the ratios of successive terms in the Fibonacci sequence and sequence of Lucas numbers: [42] + = + =. In other words, if a Fibonacci and Lucas number is divided by its immediate predecessor in the sequence, the quotient approximates ⁠ φ {\displaystyle \varphi } ⁠ .

  4. Calculus - Wikipedia

    en.wikipedia.org/wiki/Calculus

    For example, traveling a steady 50 mph for 3 hours results in a total distance of 150 miles. Plotting the velocity as a function of time yields a rectangle with a height equal to the velocity and a width equal to the time elapsed. Therefore, the product of velocity and time also calculates the rectangular area under the (constant) velocity curve.

  5. Democracy Ranking - Wikipedia

    en.wikipedia.org/wiki/Democracy_Ranking

    The Democracy Ranking is an index compiled by the Association for Development and Advancement of the Democracy Award, an Austria-based non-partisan organization. [1] [2] Democracy Ranking produces an annual global ranking of liberal democracies.

  6. Energy density - Wikipedia

    en.wikipedia.org/wiki/Energy_density

    The density of thermal energy contained in the core of a light-water reactor (pressurized water reactor (PWR) or boiling water reactor (BWR)) of typically 1 GW (1000 MW electrical corresponding to ≈ 3000 MW thermal) is in the range of 10 to 100 MW of thermal energy per cubic meter of cooling water depending on the location considered in the ...

  7. List of sovereign states by tax revenue to GDP ratio - Wikipedia

    en.wikipedia.org/wiki/List_of_sovereign_states...

    [3] UNU-WIDER data is more complex, total taxes consists of taxes, social contributions, grants receivable, and other revenue. Sources are IMF Country Reports [ 4 ] and OECD Revenue Statistics. [ 5 ]

  8. Forty Six & 2 - Wikipedia

    en.wikipedia.org/wiki/Forty_Six_&_2

    The song is mostly in 4/4 time with some sections of 7/8 in between. In the intro, Danny Carey plays four measures of 7/8 on his ride cymbal over the rest of the band playing in 4/4, and they all meet up on the downbeat of the 5th measure in 4/4. During the bridge there are three measures of 7/8 followed by one measure of 4/4.

  9. List of radioactive nuclides by half-life - Wikipedia

    en.wikipedia.org/wiki/List_of_radioactive...

    5.7 lead-212m: 6.0 lead-214m: 6.2 bismuth-187m2: 7 thorium-229m: 7 radium-215m1: 7.1 lead-190m3: 7.2 plutonium-239m2: 7.5 bismuth-206m1: 7.7 astatine-205m: 7.76 thorium-220: 9.7 lead-195m2: 10.0 lead-199m2: 10.1 radium-212m1: 10.9 astatine-196m2: 11 actinium-219: 11.8 radon-209m1: 13.4 polonium-194m: 15 caesium-113: 16.7(7) francium-217: 16.8 ...