BorisK1

Lives in United States MI, United States
Works as a Software engineer
Joined on May 7, 2004

BorisK1's recent activity

  • One thing that blew my mind was when the LIGO detectors registered their first merger of two black holes. Pre-merger, one hole was 36 solar masses, the other one was 29. The resulting black hole ...
  • Well, black holes are very much ridiculous ;-) But, just to have fun with really big numbers, the very same E=MC^2 can tell how much energy we would need to manufacture such a monster: About ...
  • *Might be able* to make. Just because wormholes don't contradict GR, doesn't make them possible. A three-headed elephant doesn't contradict GR either ;-) Lots and lots of "ifs" and "hypotheticals" ...
  • So fast, in fact, that it was shown to travel back in time: https://phys.org/news/2013-05-physics-team-entangles-photons-coexisted.html
  • Played with some online calculators, and the OMG particle is nowhere near a black hole. Here's what we already knew: Relativistic mass of the OMG particle: 5.3x10^-16 kg Energy: 48 Joules Radius of ...
  • Agrh! Looks like the mobile editor deletes numbered lists. I listed some steps to check the above, but they got deleted from the post :(
  • I'm on a mini- vacation skiing with the kids, so my back-of-the-envelope calculator is off. So if you have a few minutes, puzzle this out: It may very well be that the OMG particle actually came ...
  • It's Wikipedia. If you like, you can search the editing history for the sickle. Or we can edit the article ourselves. But if it said relativistic jets were moving at 9C, chances are, somebody ...
  • Schools are organized differently in different countries. In the former USSR, there was no concept of "elective" class, not even in college. Every class was required. Though in college, you could ...
  • It's not just the telescopes. The software in the GPS receivers has to take relativistic effects into account. So far, General Relativity had been remarkably accurate with everything we threw at it. ...
  • They don't get literally frozen. The human language doesn't have precise terms to describe the math. What happens, depends on the observer's position. An observer falling into a black hole, won't ...
  • The modern physics holds it that nothing can go faster than the speed of light. Not just photons - no causal information. Nothing with a big "N". If something - anything at all - happened five ...
  • Perhaps they're treating it like inoculation against drowning. If everybody is taught how to swim at an early age, you'll have fewer accidents across the country.
  • Yes. There are various theories on the size (and topology) of the "real" universe. There are some "lower limit" numbers, but no "upper limit". Anything outside the observable universe, by ...
  • Well - everybody is in the center of their own observable universe. An observer ten billion light years away will see a part of the universe that we also see, a part that we don't see yet , and a ...
  • Nothing special. A regular, run-of-the-mill galactic sterilizer.
  • Observable universe is defined as a spherical boundary (centered on us and expanding at light speed), from within which the light had time to reach us since the Big Bang. Any photon originating ...
  • It's the same with any kind of shield: The thicker it is, the less are the chances that any individual photon gets through. OTH, the more photons you start with, the more of them do get through. ...
  • And yet, you "pretended" (1) that I was talking about something else. Thanks for the link! However, they don't offer a lot to go on. Yes, not a lot of detail in those messages. One issue I see ...
  • I think it's the same as with visible light and infrared. If a photon happens to hit something, it gets absorbed it reflected. If it doesn't, it keeps going - forever. Things like gas and dust ...
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