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  2. 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.

  3. 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.

  4. Dianne Buswell - Wikipedia

    en.wikipedia.org/wiki/Dianne_Buswell

    Dianne Claire Buswell was born on 6 May 1989. She is a former Australian Open champion and four-time Amateur Australian Open finalist. [1] She and her brother Andrew Buswell were Western Australian Open Adult New Vogue champions for 2008 and 2010.

  5. Grampians National Park - Wikipedia

    en.wikipedia.org/wiki/Grampians_National_Park

    The general form that the ranges take is: from the west, a series of low-angled sandstone ridges running roughly north–south. The eastern sides of the ridges, where the sedimentary layers have faulted, are steep and beyond the vertical in place - notably at Hollow Mountain near Dadswells Bridge at the northern end of the ranges.

  6. 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.

  7. Mexico City - Wikipedia

    en.wikipedia.org/wiki/Mexico_City

    The city has several progressive policies, [25] [26] such as elective abortions, [27] a limited form of euthanasia, [28] no-fault divorce, [29] same-sex marriage, [30] and legal gender change. [31] On 29 January 2016, it ceased to be the Federal District (Spanish: Distrito Federal or D.F. ) and is now officially known as Ciudad de México (or ...

  8. Holocaust denial - Wikipedia

    en.wikipedia.org/wiki/Holocaust_denial

    Holocaust denial, they contend, is "the worst form of racism and its most respectable version because it pretends to be a research". [274] Holocaust historian Deborah E. Lipstadt expressed her opposition to laws against expressing Holocaust denial, saying, "I don't think they work. I think they turn whatever is being outlawed into forbidden fruit."