A convective instability in a system of two immiscible fluids under gravity may arise not only from heating from below but also as a result of a horizontally uniform heating from above, i.e., with either fluid exhibiting a stable stratification. Some recently discovered mechanisms of such instability are discussed.

PACS: 44.25.+f, 47.20.Bp (all) DOI: 10.1070/PU1997v040n07ABEH000256 URL: https://ufn.ru/en/articles/1997/7/g/ A1997XP44400006 Citation: Ingel’ L Kh "'Anticonvection'" Phys. Usp. 40 741–745 (1997) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Оригинал: Ингель Л Х «„Антиконвекция“» УФН 167 779–784 (1997); DOI: 10.3367/UFNr.0167.199707g.0779