Since you see them everywhere, why not try and learn more about them?
Source: http://www-history.mcs.st-and.c.uk/Curves/Ellipse.html
During the middle ages, Greek and Roman science was kept alive by the Arabs. Little progress was made in the art of surveying, and the only writings pertaining to it were “Practical Geometry”. In the thirteenth century von piso wrote “Practica Geometria”. Which contains instructions on surveying. Early civilization assumed the earth to be a flat surface, but by nothing the earth circular shadow on the moon during lunar eclipses and watching ships gradually disappears as the sailed towards the horizon, it was slowly deduced that the planets actually curved in all directions.…
Ptolemy believed that the planets moved uniformly about a small circle called an epicycle and the center of the epicycle moved about a larger circle—called a deferent—with the earth at or near its center.…
In this lab we examined the elliptical nature of plametary orbits. In the first part we learned the Law of Equal Areas, a law concerning the speed at which planets travel; a line connecting a planet to the sun will sweep out equal areas in equal times; "Kepler's second law means that a planet's orbital speed changes with its distance from the sun"…
By the 2nd century CE it became more and more apparent that the simplistic models derived nearly 2000 years before, were flawed. Kepler, a Scientist of the early 1600s concluded not only that the previously stated purely circular orbitals around the sun were in fact ellipses, and that planets travel faster when near the sun, and slower when farther from the sun, and lastly he found that the mathematical relationship between the orbital period, and the orbital radius of any given planet.…
Cited: Cordoba, Nicolas E., and Kara Sarkis. The surveyor 's Theodolite formula. Orlando: Orange County Press, 2012. Print…
Johannes Kepler was a key figure during the Scientific Revolution and his work in astronomy provided the framework for modern astronomy and physics. Kepler is best-known for his laws of planetary motion. His laws of planetary motion improved upon Copernicus’s heliocentric theory by explaining how the speeds of the planets varied and by using elliptical orbits rather than circular orbits.…
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.…
Throughout the Scientific Revolution was a progressive movement that that place in the 16th and 17th century. Scientist and Philosophers would have to reexamine traditionally held values. Nowhere is this best exemplified as is in the reshaping of the European view of the universe. Since the Middle Ages the Catholic Church had followed the Ptolemaic model of the universe, a geocentralized solar system where the Earth is orbited by the various planets in regular, crystalline spheres. The Polish astronomer Nicholas Copernicus, however, presented a system where the sun was the center of the solar system, thereby solving numerous mathematical problems encountered at the time. German astronomer Johannes Kepler further championed Copernicanism by discovering that the path of the planets' orbits is elliptical rather than circular, as was previously thought. English physicist Sir Isaac Newton would later justify this theory by establishing his laws of gravity.…
We don't notice the importance of this conic, but it really has an impact on the world. Ellipses are really important because planets take an elliptical path. This occurs in our universe. For example, an ellipse is formed when you tilt a glass of water. When the cup is tilted, the water all goes to one side, making the water uneven, forming an ellipse. Conics are really important because they literally help us shape our society. This integrates well with my current major in art and design because of the engineering and use of conic…
One of his first discoveries was that the apparent angular sizes of the Moon and the Sun are the same, which is why their sizes are in proportion to their distances from the Earth. He also recognized that when there is a half moon, the Sun-Moon-Earth angle is exactly a right angle. This allowed him to determine that the distance from the Earth to the Sun was twenty times the distance from the Earth to the Moon. Aristarchus recorded the eclipse time and the lunar orbital period as well, which allowed him to discover that the Moon is one third the size of the Earth, and that the Sun is seven times the Earth. This also allowed him to calculate the distances from the Sun to the Earth and from the Moon to the Earth relative to the diameter of the Earth.…
In order to graph an ellipse in standard form, the center is first plotted (the (h, k)). Then, the x-radius is plotted on both sides of the center, and the y-radius is plotted both up and down. Finally, you connect the dots in an oval shape. Finally, the foci can be calculated in an ellipse. The foci is found in the following formula, a^2 b^2 = c^2. A is the radius of the major axis and b is the radius of the minor axis. Once this is found, plot the points along the major axis starting from the center and counting c amount both directions.…
Today I would like to talk about Ptolemy and Nicolaus. Claudius Ptolemy lived somewhere in 200 A.D. He is the most famous Greek geographer. When you look at a map you will see the direction, longitude, and latitude. Claudius put those there. He that the Earth is the center and the sun and other planets revolved around it. Nicolaus Copernicus real name is Niklas Koppernigk. He was born in Poland February 19, 1473. His father died when he was only 10 years old. Copernicus is the founder of modern astronomy. He went to Cracow University and learn Latin, mathematics, and astronomy. He too also thought that the Earth is the center. But using logic and mathematics, Copernicus discovered that the Earth and other planets revolved…
The Ptolemaic-Aristotelian view was very idealized and simple compared to the knowledge we have today. They taught that the planets were perfectly spherical, traveling in circular orbits, at a constant speed. The geocentric model of our galaxy was also taught, meaning the earth would be at the center. Bit by bit, philosophers, especially in the eighteenth century, began to find discrepancies in the ancient model. Copernicus, believed that a heliocentric model of the galaxy better accounted for planetary behavior, even if it wasn't the true model. Johannes Kepler found that planetary orbits weren't perfectly circular, but instead, are elliptical. Galileo Galilei, unlike Copernicus, believed that the heliocentric model was the true model of our…
Claudius Ptolemy was an Egyptian astrologer in the 2nd century who’s theories of astronomy, known as the Almagest, which he based a model of the Universe which influenced Western and Arabic societies for the next 1,500 years. The Ptolemaic system is a geocentric cosmology assuming that the Earth is stationary and the centre of the universe. Ptolemy’s model showed that planets revolved around a point and that point revolved around another point which was earth. In order to explain the motion of the planets, Ptolemy combined eccentricity with an epicyclic model where he assumed the planets moved on a small sphere or circle, called an epicycle, that moved on a larger sphere or circle, called a deferent. The rotation around the first point was…
The aging population are making more doctors visits to offices and hospitals. Hospitals are seeing in increase in older people than they were ten years ago. The aging population have more complications and have to have more tests and more care that results in a longer wait time in hospitals due to the nurse shortgage. The average length of a hospital stay for older people 65 years and older was 5.6 days. Older people average more office visits with doctors but most do not seek medical care due to financial barriers. Hospital staff needs to be able to spend more time with each patient due to more and more people are using emergency rooms to get their health care needs. In smaller rural areas the wait is usually shorter than that of a larger urban hospital (Hellmich 2008).…