Physics

Presentation on James Clerk Maxwell

James Clerk Maxwell (1831 – 1879) was a Scottish theoretical physicist. His theory of electromagnetism united all previously unrelated observations, experiments, and equations of electricity, magnetism, and optics into a consistent theory. Maxwell’s equations demonstrate that electricity,.....

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Lecture on John Dalton

John Dalton (1776 – 1844) was an English chemist, meteorologist and physicist. Later, Thompson, Rutherford Bohr, Schrodinger and many others contributed to our present model of the atom. While parts of Dalton’s atomic theory were correct, today’s model of the atom with electrons, protons an.....

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Presentation on Tycho Brahe

Tycho Brahe, born Tyge Ottesen Brahe, was a Danish nobleman known for his accurate and comprehensive astronomical and planetary observations. Tycho had published a widely-sold book. Modest chap that he was, he included a portrait and 16 crests showing his lineage over four generations. He died th.....

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Lecture on Johannes Kepler

Ba sic purpose of this lecture is to present on Johannes Kepler. Kepler’s laws are: Planets travel around the Sun in elliptical orbits with the Sun at one focus. A line from the planet to the Sun sweeps out equal areas in equal times. The square of a planet’s period in years and it.....

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Lecture on Nicolaus Copernicus

General purpose of this lecture is to present on Nicolaus Copernicus. He was first known modern person to propose the Earth circles the Sun. Astronomer Nicolaus Copernicus was instrumental in establishing the concept of a heliocentric solar system, in which the sun, rather than the earth, is t.....

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Roots of Astronomy

Main objective of this lecture is to present on Roots of Astronomy. Already in the stone and bronze ages, human cultures realized the cyclic nature of motions in the sky. Monuments dating back to ~ 3000 B.C. show alignments with astronomical significance. Those monuments were probably used as c.....

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Lecture on Space Shuttle

A space shuttle is a reusable space craft. First used in 1981. They are able to land on an ordinary airfield. The space shuttle did many things. It could carry up to seven astronauts at a time. The space shuttle was like a moving van. Two shuttle tragedies in 1987 and 2003. Shuttles replaced the.....

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Space Exploration: Past, Present and Future

Space exploration is still in infancy. Although we have learned a lot, we still have a lot of questions. The cost of space exploration mandates that we work together with other countries. Example: International Space Station (ISS). Space Exploration history: The space age began on October 4, 1957.....

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How Newton derives Kepler’s Law of Areas?

Major objective of this lecture is to present on How Newton derives Kepler’s Law of Areas? Line from the sun to the planet sweeps out equal areas in equal times. Law of Areas derives in three ways. The Law of Orbits: All planets move in elliptical orbits, with the sun at one focus. The Law of.....

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Sir Isaac Newton’s Discovery

Prime objective of this lecture is to present on Sir Isaac Newton’s Discovery. Sir Isaac Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist and theologian and one of the most influential men in human history. As a result of his extensive contribu.....

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Hipparchus of Rhodes

Hipparchus of Rhodes became a famous astronomer in Alexandria. Around 150 BCE developed a new tool for measuring relative distances of the stars from each other by the visual angle between them. Hipparchus invented the table of chords, a list of the ratio of the size of the chord of a circle to .....

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Presentation on Ptolemaic System

Ptolemy’s system was purely geometric, like Eudoxus, with combinations of circular motions. The Ptolemaic system is a geocentric cosmology; that is, it starts by assuming that the Earth is stationary and at the centre of the universe. Ptolemy’s system for each planet involves a large (imagina.....

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