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  2. 3/8 - Wikipedia

    en.wikipedia.org/wiki/3/8

    the fraction, three eighths or 0.375 in decimal; a time signature; 3/8, a 2007 album by Kay Tse This page was last edited on 19 April ...

  3. Gas constant - Wikipedia

    en.wikipedia.org/wiki/Gas_constant

    Heating-gas-at-constant-pressure-and-constant-volume. The molar gas constant (also known as the gas constant, universal gas constant, or ideal gas constant) is denoted by the symbol R or R.

  4. Acetone - Wikipedia

    en.wikipedia.org/wiki/Acetone

    Acetone (2-propanone or dimethyl ketone) is an organic compound with the formula (CH 3) 2 CO. [22] It is the simplest and smallest ketone (>C=O).It is a colorless, highly volatile, and flammable liquid with a characteristic pungent odour, very reminiscent of the smell of pear drops.

  5. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    The Solar System [d] is the gravitationally bound system of the Sun and the objects that orbit it. [11] It formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, forming the Sun and a protoplanetary disc.

  6. Specific impulse - Wikipedia

    en.wikipedia.org/wiki/Specific_impulse

    Specific impulse in turn has deep impacts on the achievable delta-v and associated orbits achievable, and (by the rocket equation) mass fraction required to achieve a given delta-v. Optimizing the tradeoffs between mass fraction and specific impulse is one of the fundamental engineering challenges in rocketry.

  7. Holocaust denial - Wikipedia

    en.wikipedia.org/wiki/Holocaust_denial

    Surveys conducted by Sammy Smooha of the University of Haifa found that the fraction of Israeli Arabs denying that millions of Jews were murdered by the Nazis increased from 28% in 2006 to 40% in 2008. [138]