Quotes About Kepler

[Kepler] preferred the hard truth to his dearest illusions, and that is the heart of science.

It was Johannes Kepler who first noticed the effect when he realized that, contrary to expectations, comet tails always point away from the sun. Kepler correctly surmised that pressure from sunlight creates these tails by blowing dust and ice crystals in comets away from the sun.

If a planetary twin of the Earth exists in space, it has eluded us so far. But we have found about fifty super-Earths so far. Kepler-452b, which was discovered by the Kepler spacecraft in 2015 and is about 1,400 light-years from us, is particularly interesting. It is 50 percent bigger than our planet, so you would weigh more than you do on the planet Earth, but otherwise, living there may not be so different from living on Earth.

But before the grandeur and intricacy of Nature, he was, like Ptolemy and Kepler, exhilarated as well as disarmingly modest. Just before his death he wrote: "I do not know what I may appear to the world; but to myself I seem to have been only like a boy, playing on the seashore, and diverting myself, in now and then finding a smoother pebble or a prettier shell than ordinary, while the great ocean of truth lay all undiscovered before me.

Kepler's second law: A planet sweeps out equal areas in equal times. It takes as long to travel from B to A as from F to E as from D to C; and the shaded areas BSA, FSE and DSC are all equal.

Kepler's third or harmonic law states that the squares of the periods of the planets (the times for them to complete one orbit) are proportional to the cubes of their average distance from the Sun; the more distant the planet, the more slowly it moves, but according to a precise mathematical law: P2 = a3, where P represents the period of revolution of the planet about the Sun, measured in years, and a the distance of the planet from the Sun measured in "astronomical units.

Condon, quick on his feet, replied that the accusation was untrue. He was not a revolutionary in physics. He raised his right hand: "I believe in Archimedes' Principle, formulated in the third century B.C. I believe in Kepler's laws of planetary motion, discovered in the seventeenth century. I believe in Newton's laws.…" And on he went, invoking the illustrious names of Bernoulli, Fourier, Ampère, Boltzmann, and Maxwell.

The Somnium makes clear to us, although it did not to all of Kepler's contemporaries, that "in a dream one must be allowed the liberty of imagining occasionally that which never existed in the world of sense perception." Science fiction was a new idea at the time of the Thirty Years' War, and Kepler's book was used as evidence that his mother was a witch.

Kepler and Newton represent a critical transition in human history, the discovery that fairly simple mathematical laws pervade all of Nature; that the same rules apply on Earth as in the skies; and that there is a resonance between the way we think and the way the world works.

All three of Kepler's laws of planetary motion can be derived from Newtonian principles. Kepler's laws were empirical, based upon the painstaking observations of Tycho Brahe. Newton's laws were theoretical, rather simple mathematical abstractions from which all of Tycho's measurements could ultimately be derived. From these laws, Newton wrote with undisguised pride in the Principia, "I now demonstrate the frame of the System of the World.

Geometry existed before the Creation. It is co-eternal with the mind of God... Geometry provided God with a model for the creatin... Geometry is God Himself. Johannes Kepler

As the writer Arthur Koestler astutely observed, "Johannes Kepler became enamored with the Pythagorean dream, and on this foundation of fantasy, by methods of reasoning equally unsound, built the solid edifice of modern astronomy. It is one of the most astonishing episodes in the history of thought, and an antidote to the pious belief that the Progress of Science is governed by logic.

indeed, Johannes Kepler fell into a state of self-described "sacred frenzy" when he found his laws of planetary motion—because those patterns seemed to be signs of God's handiwork.

Nos proporciona un intenso placer conseguir explicar algo con éxito, al igual que cuando Newton explicó las leyes del movimiento planetario de Kepler, junto con otras muchas cosas. Las teorías y los métodos científicos que sobreviven son aquellos que proporcionan esa satisfacción, encajen o no con ningún modelo preexistente sobre cómo habría que practicar la ciencia.

The Influence of Archetypal Ideas on the Scientific Theories of Johannes Kepler.

The roads by which men arrive at their insights into celestial matters seem to me almost as worthy of wonder as those matters in themselves.

in 1620 Kepler's mother was being tried for witchcraft.

Kepler was, as author Arthur Koestler called him, the "watershed" where the medieval world finally gave way to the modern.

The very nature of human organizations creates orthodoxy, and orthodoxies, in turn, give birth to reformers and mavericks, men such as Luther and Kepler.

Jan Hus. Kepler was part of the funeral

it may be comforting to recall that detailed longitudinal analysis of the behavior of a single solar system was the foundation stone for Kepler's laws, and ultimately Newton's.

Our generation is witness to a development of physical knowledge such as has not been seen since the days of Kepler, Galileo and Newton, and mathematics has scarcely ever experienced such a stormy epoch. Mathematical thought removes the spirit from its worldly haunts to solitude and renounces the unveiling of the secrets of Nature. But as recompense, mathematics is less bound to the course of worldly events than physics.

When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He preferred the hard truth to his dearest illusions; that is the heart of science.

The Earth is round, and is inhabited on all sides, is insignificantly small, and is borne through the stars.