Reviews of topical problems

K.M. Salikhov “Current state of the spin exchange theory in dilute solutions of paramagnetic particles. New paradigm of spin exchange and its manifestations in EPR spectroscopy” Phys. Usp. 62 951–975 (2019)

L.P. Babich “Thunderous neutrons” Phys. Usp. 62 976–999 (2019)

Physics of our days

L. Couëdel, V.M. Nosenko, S. Zhdanov, A.V. Ivlev, I. Laut, E.V. Yakovlev, N.P. Kryuchkov, P.V. Ovcharov, A.M. Lipaev, S.O. Yurchenko “Experimental studies of two-dimensional complex plasma crystals: waves and instabilities” Phys. Usp. 62 1000–1011 (2019)

Methodological notes

B.M. Bolotovskii, G.B. Malykin “Visible shape of moving bodies” Phys. Usp. 62 1012–1030 (2019)

From the history of physics

G.E. Volovik “Fifty years of research at the Landau Institute for Theoretical Physics (on the 100th anniversary of the birth of I.M. Khalatnikov)” Phys. Usp. 62 1031–1045 (2019)

Personalia

A.F. Andreev, V.E. Zakharov, I.V. Kolokolov, V.V. Lebedev, V.P. Mineev, S.P. Novikov, L.P. Pitaevskii, V.L. Pokrovskii, A.A. Starobinskii, M.V. Feigel’man, I.A. Fomin, G.M. Eliashberg “Isaak Markovich Khalatnikov (on his 100th birthday)” Phys. Usp. 62 1046–1047 (2019)

A.F. Andreev, S.P. Denisov, A.M. Zaitsev, S.V. Ivanov, A.K. Likhoded, V.A. Matveev, V.A. Petrov, V.A. Rubakov, A.N. Skrinskii, N.E. Tyurin “Semen Solomonovich Gershtein (on his 90th birthday)” Phys. Usp. 62 1048–1050 (2019)

A.G. Voronovich, A.V. Gaponov-Grekhov, G.S. Golitsyn, M.E. Gorbunov, V.U. Zavorotnyi, M.A. Kallistratova, Yu.A. Kravtsov, V.E. Ostashev, L.A. Ostrovskii, L.P. Pitaevskii, I.M. Fuks, I.G. Yakushkin “Valerian Il'ich Tatarsky (on his 90th birthday)” Phys. Usp. 62 1051–1052 (2019)

A.V. Gurevich, L.M. Zelenyi, E.A. Kuznetsov, G.A. Mesyats, A.V. Mikhailov, S.L. Musher, S.P. Novikov, V.A. Rubakov, A.M. Rubenchik, R.Z. Sagdeev, Ya.G. Sinai, V.E. Fortov “Vladimir Evgen'evich Zakharov (on his 80th birthday)” Phys. Usp. 62 1053–1055 (2019)

I.V. Grekhov, V.N. Kisel, A.G. Litvak, E.A. Mikrin, S.A. Nikitov, O.F. Petrov, M.A. Pogosyan, V.P. Smirnov, A.N. Starostin, V.E. Fortov, B.Yu. Sharkov, I.A. Shcherbakov “Andrei Nikolaevich Lagarkov (on his 80th birthday)” Phys. Usp. 62 1056–1057 (2019)

Letters to the editors

V.V. Klimov “On the existence of 'super-resonant' states in sub-wavelength dielectric resonators and their relation to bound states in the continuum” Phys. Usp. 62 1058–1059 (2019)

Physics news on the internet

Yu.N. Eroshenko “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 62 (10) (2019)