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Baruch
Current experimental physics ...
Sun Jun 11, 2017 12:55
99.126.188.85

https://phys.org/news/2017-06-physicists-hint-phenomenon-standard-particle.html

Well, doesn't directly address what "existence" is ... but short lived particles, even shorter lived resonances, and very short lived victual particles (in QM) ... so say something. Particles like the electron and proton appear to be immortal (base states that can't decay further). Basically, particle physics is a bit like spectroscopy (bound electrons emitting or absorbing photons) but more general. If you put enough energy into a small enough space over a short enough time, you get virtual particles to pop up ... which in most cases are temporary, and they decay into lower energy configurations (entropy wins) ... just as an excited atom can have an energized electron, decay into a base state, emitting a characteristic photon (spectrum). Mass-energy is conserved, even if mass and energy are not independently conserved. Also space-time seems to be conserved at least over small volumes of space and humanly short periods of time (but not in the larger picture of galaxies and the universe as a whole). There are two theoretical violations of mass-energy conservation ... gravity waves (which may have been detected last Fall) and the Big Bang itself. Not so much that things are always conserved, but under what common or rare circumstances are the rules violated. More detail:

https://phys.org/news/2017-06-slac-particle-physicist-discusses-physics.html#nRlv

  • Happy to chat ...Baruch, Sat Jun 10 19:50
    It is as lonely here as a Maytag repairman commercial ;-) As per a recent debate against Hawking and Tyson, philosophical concepts are passe and not cool. Scientists speculate, in addition to doing... more
    • Current experimental physics ... — Baruch, Sun Jun 11 12:55
    • Here is a link to the 2012 controversy ...Baruch, Sun Jun 11 07:23
      https://www.theatlantic.com/technology/archive/2012/04/has-physics-made-philosophy-and-religion-obsolete/256203/ This controversy went on for a couple of years afterward, with people like Tyson and... more
      • Re: Here is a link to the 2012 controversy ...Marius Dejess, Mon Jun 12 03:30
        Marius Dejess What is existence? Sat Jun 10, 2017 16:58 49.147.157.64 Dear guys here, I have been seeking to find out what scientists have to say about existence, and my impression is that they are... more
        • Glad to be chatty ...Baruch, Mon Jun 12 06:57
          Been debunking Thales and Pythagoras, with Heraclitus and Xenophanes since 500 BCE (feels like). I will match your two dead Greek geeks and raise you ... I will take Archimedes over any other Greek... more
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