Майзель, Сергей Осипович. Свет и зрение [Текст] / С. О. Майзель. - [2-е изд., с изм. и доп.]. - Ленинград ; Москва : Гос. техн.-теоретич. изд-во, 1932 (Л....
Why do compass needles point north―but not quite north? What guides the migration of birds, whales, and fish across the world’s oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, the...