Johannes Kepler 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 Johannes Kepler was born on December 27, 1571 which was also the same day as feast day of St. John the Evangelist.
Using Max Planck’s quantum Theory he formulated the photon theory of light and explains the photoelectric effect. In 1916 proposes general theory of relativity-still central to our understanding of the universe. Einstein changed the political balance of power in the twentieth century, through his scientific foundation in the development of atomic energy. E=mc² German Physicist Max Planck introduced the quantum theory. Einstein built in on the work of Max Planck.
Gravitational Force of Bodies All bodies with mass exert a gravitational pull on the bodies around them, even you and me. The larger the radius and mass of the body the larger the force. Most people know that the force of gravity on earth is much greater than on the moon, but how much larger is it, and how is gravity calculated? German astronomer Johannes Kepler (1576-1630) spent years observing the motion of planets and developed a set of laws for planetary motion. Years after his death Physicist Isaac Newton (1642-1727) used these laws to help him develop his law of universal gravitation.
The Dutch astronomer Jan Hendrik Oort (1900-1992) overturned the idea that our sun is at the center of the Milky Way galaxy. He contributed greatly to knowledge about the structure and evolution of our galaxy, and also discovered the place of origin of most comets, the Oort Cloud. Jan Oort was born on April 28, 1900, in the farming village of Franeker in Holland. At the age of 17 he entered the University of Groningen and earned his doctoral degree in 1926. He received the Bachiene Foundation Prize (1920), undertook research at the Leiden Observatory (1924), and lived abroad as a research associate at the Yale University Observatory (1924-1926).
Throughout the 1800s, attempts were made to detect the ether or its movement directly, culminating in the famous Michelson-Morley experiment. They all failed to actually detect the ether, resulting in a huge debate as the twentieth century began. Was light a wave or a particle? In 1905, Albert Einstein published his paper to explain the photoelectric effect, which proposed that light traveled as discrete bundles of
(1). It wasn’t until the Enlightenment that science truly evolved into something amazing. Astrology collapsed under astronomy, and alchemy led to the development of chemistry. Newtonian physics were born and with it a revolution in the sciences. A few notables in the science and philosophies of the Enlightenment period include Spinoza, Locke, Hobbes, Kant, Rousseau, and Descartes (2).
Mr. Bodner states that French Physicists Jean Baptiste Perrin was the first to use the term Avogadro’s number. Based on his work on Brownian motion in 1909, Perrin reported an estimate of Avogadro’s number. To accurately determine Avogadro’s number requires the measurement of a single quantity on both atomic and macroscopic scales, with the use of the unit of measurement. This was possible because American Physicist Robert Millikan measured the change on an election. The charge on a mole of electrons for some time and is the constant called the Faraday.
Physics 102 Lab: Bohr’s Theory of the Hydrogen Atom Salome Moon Introduction: In 1913, the Danish physicist Niels Bohr (1885 - 1962) managed to explain the spectrum of atomic hydrogen by an extension of Rutherford's description of the atom. In that model, the negatively charged electrons revolve about the positively charged atomic nucleus because of the attractive electrostatic force according to Coulomb's law. But the electron can be taken not only as a particle, but also as a de Broglie wave (wave of matter) which interferes with itself. The orbit is only stable, if it meets the condition for a standing wave: The circumference must be an integer multiple of the wavelength. The consequence is that only special values of radius and energy are allowed.
In the 1600’s, Galileo, backed up observations by Copernicus and published them. He took the punishment for it, even though he should not have. Back in the second century a Greek astronomer named Ptolemy, published a theory about the universe that said that the earth was at the center of the universe. This was widely accepted through Europe and the Middle East because it agreed with the church’s view on the universe. This theory had the earth at the center of the universe and all other planetary bodies orbiting the earth while the earth stayed still.
How was Science Shaped by Einstein’s Theory of Relativity? Brencis Matthew Devry University 9/21/2012 How was Science Shaped by Einstein’s Theory of Relativity? The earth rotates around the sun at 67,000 miles an hour (Saintonge, 2002). This is a scientific fact, but most people don’t retain this information as common knowledge. The universe is an expansive beautiful symmetry of wonderment and exquisite art.