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include information about LIGO detection of gravity waves
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#:This has nothing to do with global warming.
 
#:This has nothing to do with global warming.
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#:'''Update 2:'''  Gravitational waves have been detected directly through LIGO: the Laser Interferometer Gravitational-Wave Observatory.
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#:First detection on 14 September 2015. See LIGO Scientific Collaboration and Virgo Collaboration, "Observation of Gravitational Waves from a Binary Black Hole Merger," Physical Review Letters, 116, 061102 – published 11 February 2016.
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#:Second detection on 26 December 2015 (the "boxing day event").  See LIGO Scientific Collaboration and Virgo Collaboration, "GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence," Physical Review Letters, 116, 241103 – published 15 June 2016.
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#:Third detection on 4 January 2017.  See LIGO Scientific and Virgo Collaboration, "GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2," Physical Review Letters, 118, 221101 – published 1 June 2017.
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#: So, in this respect, gravitational waves ARE like global warming: both are true, verified, factual phenomena, which exist whether or not any particular person wants them to exist.  As John Adams pointed out in 1770, "Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passions, they cannot alter the state of facts."
 
#''The discontinuity in momentum as velocity approaches "c" for infinitesimal mass, compared to the momentum of light.''
 
#''The discontinuity in momentum as velocity approaches "c" for infinitesimal mass, compared to the momentum of light.''
 
#:The formulas for velocity, momentum, and mass can in fact be written in such a way that they appear to have discontinuities, just as the tangent function has discontinuities while the underlying sine and cosine functions do not.  But they can also be written in a form that does not show discontinuities.
 
#:The formulas for velocity, momentum, and mass can in fact be written in such a way that they appear to have discontinuities, just as the tangent function has discontinuities while the underlying sine and cosine functions do not.  But they can also be written in a form that does not show discontinuities.
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