Борис Штерн отвечает на каверзные вопросы пользователей социальных сетей. 003 29 апр. 2022

TrV Editor-in-Chief Boris Stern answers challenging questions from social media users on astronomy, astrophysics, cosmology, and science fiction. The questions were voiced and posed by Alexey Kudrya. Link to the article "Primordial Black Holes" https://trv-science.ru/2021/09/pervic... Dear viewers, subscribers of our channel, and readers of the Troitsky Variant - Science newspaper, if you like what we do and would like to support us, please use this link: http://trv-science.ru/vmeste/ Thank you in advance. 00:00 Introduction / Organizational Moments 00:33 Why do planetary nebulae have different shell shapes if the stars exploded uniformly? 03:05 How do neutron stars have magnetic fields if there are no currents? 04:46 Where does the neutron get its magnetic moment? 05:43 Why are the Z and W bosons more massive than the particles involved in the weak interaction? Where does the boson get its mass? 08:25 Has the mystery of the electron-positron ratio in cosmic rays been solved? Is it an artifact or a real phenomenon? 01:39 How is the Universe expanding at speeds exceeding the speed of light, and how long has this expansion lasted? 04:37 Can accelerated expansion be explained without dark energy? 05:35 Was there rotation at the supersingularity stage before the Big Bang? 08:24 Have all the fundamental building blocks of matter (quarks and leptons) been found, or could there be something even smaller? 09:34 What's the status of the search for primordial gravitational waves? 23:29 How did they determine that the discovered galaxy doesn't contain dark matter? 25:41 Why is the center of the black hole not a sphere, but a torus (donut)? 26:51 Is there a theoretical mass limit for a supermassive black hole? 28:05 Could the Universe end up as a single large supermassive black hole? 29:40 How do massive black holes form in the early Universe? Are there any problems with the growth rate and initial mass? 36:20 Does dark matter fall into black holes? Has anyone tried to test this? 38:15 Why does the neutron behave like a particle with a de Broglie wavelength, while the deuteron doesn't? 39:53 What's happening to the cosmological constant? Why the 120-order-of-magnitude discrepancy? Are there any advances beyond the anthropic principle? 40:54 What remains after a black hole evaporates—nothing or a Planck black hole? 42:38 If the theory of cosmological inflation is correct, what is the scalar field that generated it? What parameters are known, and can they be measured?