Johannes Kepler (1571-1630)
•German Astronomer and mathematician
1584- Kepler was enrolled into a theological seminary at Adelburg. 1600- Kepler appointed as assistant to Tycho Brache, then as his successor one year later after Brache’s death. 1609- Kepler’s first book, The Astronomia Nova (New Astronomy), was published. It discussed the orbit of the planet Mars and stated: •Law of Ohm- the sun is located at one Foci(one of 2 centers of an ellipse) •Kepler's first Law: The orbit of a planet about the Sun is an ellipse with the Sun's center of mass at one focus. •Kepler's second Law: A line joining a planet and the Sun sweeps out equal areas in equal intervals of time. •Solved the problem of planetary motion by using Copernicus’s sun-centered universe and Brache’s empirical data. 1618- Kepler moved to Linz where he published his second book, the Harmonice Mundi (Harmonies of the World), it stated: •Kepler's third Law: The squares of the periods of the planets are proportional to the cubes of their semi-major axes. This law was derived from Kepler’s belief that God patterned everything in the universe within quantitative norms. 1618-1621- Also while in Linz, Kepler’s third book, the Epitome Astronomiae Copernicanae, was published in sections between 1618 and 1621. Facts:

•Was the founder of “celestial mechanics”.
•Formed basis of calculus in book : Stereometrica Doliorum. •Was a Lutheran.
•Book, Mysterium Cosmographicum, held a representation of the universe which was based on the heliocentric model. •Book, Music of The Spheres, diagramed the orbits of the planets.

...JohannesKepler was born December 27, 1571. He was a German mathematician, astronomer, astrologer, and a key figure in the seventeenth century. He is best known for his eponymous laws of planetary motion. He believed that God had created the world according to an intelligible plan that through the natural light of reason.
Kepler's first major astronomical work, Mysterium Cosmographicum, was the first published defense of the Copernican system. On July nineteenth 1595 he had an epiphany. He realized that regular polygons bound one inscribed and one circumscribed circle at definite ratios, which, he reasoned, might be the geometrical basis of the universe. After this hypothesis failed he began to look into three-dimensional polyhedral. He realized that regular polygons bourn one inscribed and one circumscribed by spherical orbs; nesting these solids, each encased in a sphere, within one another would produce six layers, corresponding to the six known planetsMercury, Venus, Earth, Mars, Jupiter, and Saturn. By ordering the solids correctlyoctahedron, icosahedrons, dodecahedron, tetrahedron, cubeKepler found that the spheres could be placed at intervals corresponding (within the accuracy limits of available astronomical observations) to the relative sizes of each planet's path, assuming the planets circle the Sun. Kepler also found a formula relating the size of each planet's orb to the length of its...

...Hum300GD
JohannesKepler was born the son of a poor mercenary solider in 1571 in Weil der Stadt, Wurttemburg in the Holy Roman Empire. He began his education in Wurttemburg through a scholarship program designed to produce teachers and Lutheran pastors. In 1589, Kepler entered the theological seminary at the University of Tubingen. It was here that he first learned of Copernican astronomy from Michael Maestlin. The University of Tubingen awarded Kepler his MA in 1591. In 1594 Kepler interrupted his theological studies and accepted an appointment as a mathematics teacher at the Lutheran school in Graz, however, he was later dismissed from the position in 1600 due to religious persecution and a standing order for all Lutherans to leave the district. Earlier that year, Kepler temporarily worked with the Emperor Rudolf II's Imperial Mathematician, Tycho Brahe. . Kepler later traveled to Prague to join Brahe and work as his assistant until Brahe's death in 1601, whereby Kepler was appointed successor as The Imperial Mathematician. The appointment was the most prestigious honor in all of Europe for mathematics during his time.
While working as Brahe's assistant, Kepler was given the task of studying and attempting to understand the orbit for planet Mars. The orbit of Mars was particularly difficult because Copernicus had correctly...

...JohannesKepler
By Ethan Bui
JohannesKepler was born on December 27, 1571 in Germany. He was a mathematician, astronomer, and astrologer. He was most famous for his eponymous laws of planetary motion. Based on his work on Astronomia nova, Harmonicies Mundi, and Epitome of Copernican Astronomy it provided a foundation for Issac Newton’s theory of universal gravitation.
Early Life
JohannesKepler was born on December 27, 1571 which was also the same day as feast day of St. John the Evangelist. Sebald Kepler his grandfather had been mayor of the town but, when Johannes was born the family fortune was in a steep incline. Kepler had two brothers and one sister. His father who was Heinrich Kepler was a mercenary who left Johannes when he was only five years old. He was said that he died in the Eighty Years’ War in the Netherlands. His mother Katharina Guldenmann was a healer and herbalist who tried for witchcraft. At six years old Kepler witnessed the Great Comet of 1577. In 1589 he went to the University of Tübingen where he studied mathematics. JohannesKepler was forced to leave his teaching post at Graz due to the Counter Reformation because he was Lutheran and moved to Prague to work with the renowned Danish astronomer, Tycho Brahe. He...

...On this day 442 years ago one of the greatest astronomically skilled mathematicians were born, his name was JohannesKepler. He was born around one o'clock in the afternoon. His parents were Katharina Kepler, and Heinrich Kepler. He grew up in a very poor family with his father being a soldier, and his mom an herbalist, or healer. He suffered from smallpox at the age of four and his father past away when he was five.
Contributions that he made to math were that he made laws of planetary motion and if he didn’t make those discoveries we wouldn’t be where we are today with our space explorations. His first law was the law of ellipses; the main law is that all planets revolve around the sun in an ellipse with the sun at one of the two foci points. Explains that planets are orbiting the sun in a path described as an ellipse. An ellipse can easily be constructed using a pencil, two tacks, a string, a sheet of paper and a piece of cardboard. Tack the sheet of paper to the cardboard using the two tacks. Then tie the string into a loop and wrap the loop around the two tacks. Take your pencil and pull the string until the pencil and two tacks make a triangle. Then begin to trace out a path with the pencil, keeping the string wrapped tightly around the tacks. The resulting shape will be an ellipse. His second law is the law of equal areas; described the speed at which the planet it orbiting the sun at. If you draw a line,...

...Context
JohannesKepler was born in the midst of an exciting and confusing time for Europe. The continent was entering the Renaissance, a reawakening of thought across the continent. By the time of Kepler's birth, the Renaissance had reinvigorated European culture, politics, philosophy, religion, literature, and science. The authority of the Catholic Church was challenged for the first time in centuries by the reformer Martin Luther, who pointed out the wrongs that he felt the Church had committed. Luther's rebellion spurred the Protestant Reformation, in which Luther and his followers freed themselves from the authority of the Church, creating a new sect of Christianity. Kepler, a Protestant, often found himself caught in the midst of the resulting tension between Catholicism and Protestantism. Catholics frequently persecuted him.
A similar challenge of scientific authority was also in progress, a radical shift in thought that later became known as the Scientific Revolution. Scientists in all fields were beginning to question the wisdom of the ancient philosophers who had molded their disciplines. They gradually began rely on objective facts and observation and to turn away from the mysticism, religion, and unfounded theorizing that had previously dominated the field. This drastic change in scientific practices and beliefs was most apparent in the field of astronomy.
Physics and astronomy had been dominated by the work of...

...JohannesKepler
The Harmonies of the World
"By the study of the orbit of Mars, we must either arrive at the secrets of astronomy or forever remain in ignorance of them."
JohannesKepler
Biography
Kepler, Johannes (1571-1630) who was a German astronomer and natural philosopher is noted for coming up with and verifying the three laws of planetary motion. These laws are now known as Kepler's laws of Planetary Motion. Johanne was born on December 27, 1571.
Childhood
Johanne was born in Weil der Stadt in Swabia and moved to nearby Leonberg with his parents in 1576. His father was a mercenary soldier and his mother was the daughter of an innkeeper. He was their first child. His father left home for the last time when Johannes was five, and is believed to have died in a war in the Netherlands. Whenever he was a child, Kepler lived with his mother in his grandfather's inn. Sources said that he used to help by serving in the inn. Customers were amused by the child's unusual competence at math. Kepler's early education was in a local school and then at a nearby seminary, from which, intending to be ordained, he went on to enroll at the University of Tübingen, a bastion of Lutheran orthodoxy.
JohannesKepler...

...The Kepler Idea: Circles and Stars
JohannesKepler was one of the most important scientist of the Scientific Revolution in the middle ages. Kepler was a German astronomer and mathematician of the late 1600's and early 1700's. He proved all the planets orbit the sun, and not the sun orbiting the earth. Kepler created three laws, in which he describes the governing motion of the planets. He was committed passionately to circles. He also became the founder of modern optics. Kepler did not face that many democratic challenges, such as many others did. His achievements proved many things in which today's modern scientists use.
Kepler discovered one of the most famous discoveries of astronomy. Planets orbit the sun. The sun does not orbit the planets. He posed a question of the planetary motion. Later, Newton took to answer. Kepler also came across the paths of planets. Their path was elliptical, not circular. Planets move in ellipses with the sun at one focus. Prior to this in 1602, Kepler found from trying to calculate the position of the Earth in its orbit that as it sweeps out an area defined by the Sun and the orbital path of the Earth that the radius vector describes equal areas in equal times. This idea became a very popular in the Scientific Revolution, as it aroused much questioning.
Three laws of planetary motion were created by...

...Kepler: Scripture vs. Astronomy
JohannesKepler was one of the first natural philosophers that defended the design of the cosmos created by Nicolas Copernicus. Kepler argued that Copernicus’s system of the universe was not only the correct structure that man had been searching for, but also that by knowing this, he was able to more fully understand the thinking of his Creator. In this paper I will demonstrate howKepler was able to use Christian theological principles in order to connect the physics and astronomy that defined the Copernican cosmos. Kepler did not see a separation between science and religion; inversely, he believed that astronomers must always remember the divine goodness and wisdom of the Creator, and acknowledge the gift of more penetrating vision for man to discover what God has created.
Kepler was born on December 27,1571 in Wurtenburg, Germany to well known, but not wealthy family. As he grew up, his talents were recognized at a young age and he received a scholarship to the University of Tubingen in order to become a Lutheran minister (Donahue ix). During this time in the 16th century, all Lutherans were required to sign a statement of faith called the Formula of Concord, but Kepler was not able to bring himself to endorse this document (Barker 96). Because all Lutheran ministers were required to subscribe to the formula of...