Issues

 / 

2009

 / 

August

  

Letters to the editors


Exotic aspects of black holes: an astronaut near the horizon (on the methodological note by A A Grib and Yu V Pavlov “Is it possible to see the infinite future of the Universe when falling into a black hole?”)


Lomonosov Moscow State University, Shternberg State Astronomical Institute, Universitetskii prosp. 13, Moscow, 119234, Russian Federation

We comment on the methodological note by A A Grib and Yu V Pavlov [Phys. Usp. 52 257 (2009)] to show that its authors are incorrect in understanding a passage that they quote from A M Cherepashchuk’s book Black holes in the Universe (Fryazino: Vek-2, 2005, p. 7) and which supposes an astronaut to be at rest in the vicinity of the horizon (not to fall freely into a black hole). With this error corrected, Grib and Pavlov’s note is quite useful methodologically.

Fulltext pdf (106 KB)
Fulltext is also available at DOI: 10.3367/UFNe.0179.200908m.0915
PACS: 04.20.−q, 04.70.−s (all)
DOI: 10.3367/UFNe.0179.200908m.0915
URL: https://ufn.ru/en/articles/2009/8/l/
000273727200011
2-s2.0-70450170538
2009PhyU...52..861C
Citation: Cherepashchuk A M "Exotic aspects of black holes: an astronaut near the horizon (on the methodological note by A A Grib and Yu V Pavlov "Is it possible to see the infinite future of the Universe when falling into a black hole?")" Phys. Usp. 52 861–862 (2009)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Черепащук А М «Экзотика чёрных дыр: космонавт вблизи горизонта (о методической заметке А.А. Гриба и Ю.В. Павлова "Возможно ли увидеть бесконечное будущее Вселенной при падении на чёрную дыру?")» УФН 179 915–916 (2009); DOI: 10.3367/UFNr.0179.200908m.0915

References (5) Cited by (1) Similar articles (8) ↓

  1. A.V. Borisov, I.S. Mamaev “Notes on new friction models and nonholonomic mechanicsPhys. Usp. 58 1220–1222 (2015)
  2. G.R. Ivanitskii “Remembering a random choice kills alternatives (reply to comment on “21st century: what is life from the perspective of physics?”)Phys. Usp. 54 431–433 (2011)
  3. G.R. Ivanitskii “Memory about the past is beneficial for survival and reproduction (reply to comment (Usp. Fiz. Nauk 182 1235 (2012) [Phys. Usp. 55 1152 (2012)]) by V I Klyatskin on “21st century: what is life from the perspective of physics” (Usp. Fiz. Nauk 180 337 (2010) [Phys. Usp. 53 327 (2010)]) by G R Ivanitskii)Phys. Usp. 55 1155–1160 (2012)
  4. A.E. Dubinov, L.A. Mytareva “Is singularity-free cloaking possible? New cloaking ideas (a reply to comments on the paper “Invisible cloaking of material bodies using the wave flow method” [Phys. Usp. 53 455 (2010)])Phys. Usp. 55 315–318 (2012)
  5. G.I. Barenblatt, A.J. Chorin, V.M. Prostokishin “On the problem of turbulent flows in pipes at very large Reynolds numbers (reply to comment by I I Vigdorovich [Phys. Usp. 58 (2015); Usp. Fiz. Nauk 185 213 (2015)] on "Turbulent flows at very large Reynolds numbers: new lessons learned" [Phys. Usp. 57 250 (2014); Usp. Fiz. Nauk184 265 (2014)])Phys. Usp. 58 199–201 (2015)
  6. N.A. Vinokurov “Relation between energy conservation and equations of motion (A reply to the comment by E A Arinshtein (Usp. Fiz. Nauk 185 333 (2015) [Phys. Usp. 58 (3) (2015)]) on "Analytical mechanics and field theory: derivation of equations from energy conservation" (Usp. Fiz. Nauk 184 641 (2014) [Phys. Usp. 57 593 (2014)]))Phys. Usp. 58 311–312 (2015)
  7. V.F. Zhuravlev “Once more on the dynamics of the rattleback (comment on "Strange attractors in rattleback dynamics" by A.V. Borisov and I.S. Mamaev [Usp. Fiz. Nauk 173 407 (2003); Phys. Usp. 46 393 (2003)] and "Nonlinear dynamics of the rattleback: a nonholonomic model" by A.V. Borisov, A.O. Kazakov, S.P. Kuznetsov [Usp. Fiz. Nauk 184 493 (2014); Phys. Usp. 57 453 (2014)])Phys. Usp. 58 1218–1219 (2015)
  8. G.D. Shabanov “On relation between theoretical and experimental components in the papers on ball lightning (reply to M.L. Shmatov's comments [Usp. Fiz. Nauk 190 107 (2020)] on the paper "On the possibility of making natural ball lightning using a new pulse discharge type in the laboratory" [Phys. Usp. 62 92 (2019); Usp. Fiz. Nauk 189 95 (2019)])Phys. Usp. 63 99–100 (2020)

The list is formed automatically.

© 1918–2026 Uspekhi Fizicheskikh Nauk
Email: ufn@ufn.ru Editorial office contacts About the journal Terms and conditions