Scientific Revolution

Front

Before Nicolaus Copernicus, the accepted belief among most Europeans was that THIS was the center of the universe...

Back

Earth

Front

Most of the older European beliefs about astronomy could be traced back to an ancient Greek astronomer and mathematician named...

Back

Ptolemy

Front

One obvious problem with ancient Greek earth-centered calculations was that sometimes the planets looked like they were doing this...

Back

Moving backwards

Front

Copernicus's theory that the Earth revolves around the sun is called...

Back

Heliocentric

Front

According to Copernicus, the Earth rotates on its axis every 24 hours, which gives us...

Back

Night and day.

Front

Just before his death, Copernicus published his six-volume work, called...

Back

"On the Revolution of Celestial Spheres"

Front

But Copernicus wasn't right about everything! He incorrectly stated that the planets travel in...

Back

Perfect circular orbits around the Sun.

Front

In addition to studying astronomy, Johannes Kepler was a professor of this subject...

Back

Mathematics

Front

Kepler is most famous for contributing three theories, which we now call the...

Back

Laws of Planetary Motion

Front

Kepler's most famous theory (now law) was that the planets travel in this kind of orbit around the sun...

Back

Elliptical (Oval-shaped)