Earth and its rotation. 2nd edition. Mikhailov A.A.

The author of the book - Soviet astronomer Alexander Aleksandrovich Mikhailov, popularly talks about the planet on which we live - about its shape, size, mass, medium density, rotation, about what evidence confirms this rotation, how it is used to measure time. Special sections are devoted to the uneven rotation of the Earth and the reasons for this unevenness, a change in the position of the axis of rotation of the Earth and a change in geographical latitudes, and some problems of the calendar. For schoolchildren, teachers of geography, physics, astronomy and all those interested in popular natural science.