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June 25, 2009

YHBT?

srikanth @ 7:30 pm, GMT +0000 ( 1245958222 ) Play

This question comes from Logik

You’ve all heard of (1), but a similar phenomenon exists elsewhere. (2) and (3) are illustrations/caricatures of this. What?

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Cracked by p vs np , Rogi , Dibyo , udupendra , Joshan , Mo , Nakul , Deepthi JS , Ananth , lordmaldy and superbrat.

Answer:

Acoustic black holes, or dumbholes in short. Check out Logik’s answer for the whole funda.


19 Responses to “YHBT?”

  1. p vs np
    1

    ‘Dumb Holes’, the acoustic analogue to the Black Holes?


  2. Rogi
    48
    10
    5

    Would it be an Acoustic Black Hole?


  3. foobar

    Black Hole.


  4. Dibyo
    11
    14
    10

    1 is a black hole and 2/3 are references to non-gravitational black holes, ones for sound, for instance, which are called acoustic black holes?


  5. udupendra
    4
    4
    7

    Dumb hole? A non-gravitational acoustic black hole, that is.


  6. Joshan

    Acoustic black holes


  7. is it the Black Hole…


  8. Mo

    Non gravitational black holes?


  9. Mo

    Oh sorry, acoustic black hole


  10. Nakul

    acoustic black hole


  11. Deepthi JS

    black holes and the artificially created sonic black holes.


  12. Logik
    1
    5
    3

    Answering my own question…
    This is called a dumb hole. analogous to the ‘black hole’. also called an “Acoustic Black hole” by the purists.
    Has been recently created by a bunch of physicists in a B.E condensate condition.


  13. madhur
    1

    non-gravitational blackholes


  14. byslexia

    1. Illustration of Hawking Radiation.
    2. Appears to be related to the buzz around LHC creating Micro-BlackHoles.

    Connect: Acoustic or Sonic Hawking Radiation??
    Used in unifying gravitational theories with quantum theories.


  15. Sandipan Chakravarty

    Black Hole


  16. Ananth
    4
    5
    9

    Acoustic black hole


  17. A sonic black hole? dunno anything more catchy to call it… sound trap?


  18. superbrat

    1= Black hole. 2,3 = acoustic black hole or black hole for sound


  19. Dumb hole


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