It takes the average reader 4 hours and 20 minutes to read Epitome of Copernican Astronomy and Harmonies of the World by Johannes Kepler
Assuming a reading speed of 250 words per minute. Learn more
The brilliant German mathematician Johannes Kepler (1571-1630), one of the founders of modern astronomy, revolutionized the Copernican heliocentric theory of the universe with his three laws of motion: that the planets move not in circular but elliptical orbits, that their speed is greatest when nearest the sun, and that the sun and planets form an integrated system. This volume contains two of his most important works: The Epitome of Copernican Astronomy (books 4 and 5 of which are translated here) is a textbook of Copernican science, remarkable for the prominence given to physical astronomy and for the extension to the Jovian system of the laws recently discovered to regulate the motions of the Planets. Harmonies of the World (book 5 of which is translated here) expounds an elaborate system of celestial harmonies depending on the varying velocities of the planets.
Epitome of Copernican Astronomy and Harmonies of the World by Johannes Kepler is 260 pages long, and a total of 65,000 words.
This makes it 88% the length of the average book. It also has 79% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 5 hours and 55 minutes to read Epitome of Copernican Astronomy and Harmonies of the World aloud.
Epitome of Copernican Astronomy and Harmonies of the World is suitable for students ages 12 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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