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  2. Academy ratio - Wikipedia

    en.wikipedia.org/wiki/Academy_ratio

    Academy ratio 1.375:1. The Academy ratio of 1.375:1 (abbreviated as 1.37:1) is an aspect ratio of a frame of 35 mm film when used with 4-perf pulldown. [1] [2] It was standardized by the Academy of Motion Picture Arts and Sciences as the standard film aspect ratio in 1932, although similar-sized ratios were used as early as 1928.

  3. 137 (number) - Wikipedia

    en.wikipedia.org/wiki/137_(number)

    1/137 was once thought to be the exact value of the fine-structure constant.The fine-structure constant, a dimensionless physical constant, is approximately 1/137, and the astronomer Arthur Eddington conjectured in 1929 that its reciprocal was in fact precisely the integer 137, which he claimed could be "obtained by pure deduction". [8]

  4. 96 equal temperament - Wikipedia

    en.wikipedia.org/wiki/96_equal_temperament

    In music, 96 equal temperament, called 96-TET, 96-EDO ("Equal Division of the Octave"), or 96-ET, is the tempered scale derived by dividing the octave into 96 equal steps (equal frequency ratios).

  5. 1987 Spanish local elections - Wikipedia

    en.wikipedia.org/wiki/1987_Spanish_local_elections

    +1 per each 100,000 inhabitants or fraction +1 if total is an even number Councillors of municipalities with populations between 100 and 250 inhabitants were elected under an open list partial block voting , with electors voting for individual candidates instead of parties and for up to four candidates.

  6. IndexIQ's IQ Global Resources ETF (GRES) Receives 5-Star ...

    www.aol.com/news/2012-12-20-indexiqs-iq-global...

    As of November 30, 2012. As of September 30, 2012. 1 Month. 3 Month. YTD. 1 Year. 3 Year. Since Fund Inception* Since Index Inception* 1 Year. Since Fund Inception*

  7. Trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_functions

    This may be obtained from the partial fraction decomposition of ⁡ given above, which is the logarithmic derivative of ⁡. [22] From this, it can be deduced also that cos ⁡ z = ∏ n = 1 ∞ ( 1 − z 2 ( n − 1 / 2 ) 2 π 2 ) , z ∈ C . {\displaystyle \cos z=\prod _{n=1}^{\infty }\left(1-{\frac {z^{2}}{(n-1/2)^{2}\pi ^{2}}}\right),\quad ...

  8. Ethane-1,1-dithiol - Wikipedia

    en.wikipedia.org/wiki/Ethane-1,1-dithiol

    Ethane-1,1-dithiol has several reactions known that are important in white wine flavours. In the presence of oxygen, ethane-1,1-dithiol is converted to cis/trans-3,6-dimethyl-1,2,4,5-tetrathiane which has a rubbery aroma.

  9. Tau Sculptoris - Wikipedia

    en.wikipedia.org/wiki/Tau_Sculptoris

    Tau Sculptoris (τ Scl, τ Sculptoris) is a binary star [6] system in the southern constellation of Sculptor, about 8° to the east-southeast of Alpha Sculptoris. [11] It is faintly visible to the naked eye with a combined apparent visual magnitude of +5.69. [2]