September 2017
Beginner to intermediate
412 pages
8h 55m
English
On November 11, 1572, a young Danish nobleman named Tycho Brahe observed the supernova of a star that we now call SN 1572. From that time until his death 30 years later, he devoted his wealth and energies to the accumulation of astronomical data. His young German assistant, Johannes Kepler, spent 18 years analyzing that data before he finally formulated his three laws of planetary motion in 1618.

Figure 1 Kepler
Historians of science usually attribute Kepler's achievement as the beginning of the Scientific Revolution. Here were the essential steps of the scientific method: observe nature, collect the data, analyze the data, formulate ...
Read now
Unlock full access