Johannes KeplerBy: Dominique Vinson

Aaron WolfKirly Mejia

A little bit of his history✘ Johannes Kepler was a german mathematician, astronomer,

astrologer, and a natural philosopher. ✘ He lived from december 27, 1571 to november 17, 1630. ✘ Johannes was known as a major key to the 17th century scientific

revolution. ✘ Johannes had 6 sons and three daughters, he was remarried once

when his former wife died. ✘ He was forced to move time and time again due to his beliefs.

Great Inventions✘ Eyeglasses✘ Log Books✘ Kepler Telescope✘ The Rudolphine Tables✘ The Astronomia Nova

✘ I much prefer the sharpest criticism of a single intelligent man to the thoughtless approval of the masses.

✘ Truth is the daughter of time, and I feel no shame in being her midwife.

✘ Nature uses as little as possible of anything.

✘ I demonstrate by means of philosophy that the earth is round, and is inhabited on all sides; that it is insignificantly small, and is borne through the star

Four Famous Quotes

Kepler's Three Laws

Law 1. The orbits of the planets are ellipses, with the Sun at one focus.

Any ellipse has two geometrical points called the foci (focus for singular).There is no physical significance of the focus without the Sun but it does have mathematical significance. The total distance from a planet to each of the foci added together is always the same regardless of where the planet is in its orbit. The importance of this is that by not assuming the orbits are perfect circles, the accuracy of predictions in the Sun-centered theory was (for the first time) greater than those of the Earth-centered theory.

Law 2. The line joining a planet to the Sun sweeps out equal areas in equal times as the planet travels around the ellipse.

In any given amount of time, 30 days for instance, the planet sweeps out the same amount of area regardless of which 30 day period you choose. Therefore the planet moves faster when it is nearer the Sun and slower when it is farther from the Sun. A planet moves with constantly changing speed as it moves about its orbit. The fastest a planet moves is at perihelion (closest) and the slowest is at aphelion (farthest).

Law 3. The square of the total time period (T) of the orbit is proportional to the cube of the average distance of the planet to the Sun.

This law is sometimes referred to as the law of harmonies. It compares the orbital time period and radius of an orbit of any planet, to those of the other planets. The discovery Kepler made is that the ratio of the squares of the revolutionary time periods to the cubes of the average distances from the Sun, is the same for every planet.

Johannes kepler should win the nobel prize because of his great additions to space exploration and the way the universe works. To allow us now to plan things ahead using his theories and findings. But not only did he do that his great inventions such as eyeglasses and logbooks are still used till this day. And that is why Johannes Kepler should win this nobel prize.

Why he should win.

Citations✘ "Kepler: Johannes Kepler." Kepler: Johannes Kepler. Web. 15 Feb. 2016. <

http://kepler.nasa.gov/Mission/JohannesKepler/>.✘ "Google." Google. Web. 15 Feb. 2016. <https://www.google.com/#q=johannes kepler quotes>. ✘ "Johannes Kepler Inventions and Accomplishments - Vision Launch." Vision Launch. 2014. Web. 15

Feb. 2016. <http://www.visionlaunch.com/johannes-kepler-inventions-and-accomplishments/>. ✘ "Bing." Bing. Web. 15 Feb. 2016. <http://www.bing.com/Images>.

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