-
Copernicus used early trigonometry to show that the observations of the movements of the planets in the sky are most easily explained by assuming that the Earth and other planets orbited around the Sun.
-
Copernicus published his book about his theory of how the Earth and all the other moons and planets orbit around the sun
-
-
Observed 1604 supernova. Became Imperial Astronomer to the Holy Roman Emperor Rudolph II upon the death of his boss, Tycho Brahe.
-
Died at age 66. He invented the Pendellum clock. A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is a harmonic oscillator; it swings back and forth.
-
