Articles related to "Atomic Theory"



John Dalton and Atomic Theory
After having sat dormant for more than two thousand years, atomic theory was finally brought into the modern age with the work of John Dalton.
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Ancient Theories of Atoms
Atoms, of course, have existed since the beginning of time. Man's study of them, however, did not begin until considerably after that.
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Brownian Motion and Atomic Theory
Following up on the work of John Dalton, Robert Brown and, later, Albert Einstein, would finally help to convince the world of the existence of atoms.
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Jean Perrin and Atomic Theory
Jean Perrin brilliantly confirmed Einstein's ideas on Brownian motion by the empirically calculating Avogadro's Constant, conclusively proving Dalton's atomic theory
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John Dalton Biography
Brief biography of John Dalton, scientist and weather pioneer who established the modern concept of atoms known as Dalton's Atomic Theory.
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A Force of Nature by Richard Reeves
Early in the 20th century, it was accepted that matter was composed of atoms. But what exactly was an atom? Ernest Rutherford would have something to say about that.
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Democritus and Atomistic Philosophy
The philosophy of Greek thinker Democritus known for his atomistic concepts, that all things are made of finite atoms in constant motion.
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The Discovery of the Electron
The first discovery of a subatomic particle would come in 1897, when J.J. Thompson first discovered evidence for the existence of the electron.
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The Scale of Atoms
Much of the difficulty scientists had in discovering, and then proving the existence of, atoms, is their size. Something so small had never before been defined.
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Rutherford and the Atomic Nucleus
New Zealander Ernest Rutherford made waves in the scientific community in the first couple decades of the twentieth century with his work on the atomic structure.
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Atoms - The Smallest Part of All Elements
They are as small as one-Angstrom diameter hydrogen, or as large as the heavyweight uranium atom, which is 238 x heavier than hydrogen.They are the stuff of life - atoms
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First Baron Ernest Rutherford Brief Biography
Brief biography of scientist Baron Ernest Rutherford whose work formed the basis of nuclear physics, best known for atom planetary model and atomic nucleus discovery.
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Heraclitus and the Philosophy of Becoming
Heraclitus was among the first pre-Socratic philosophers to propound a materialistic view of the world that influenced other great philosophers and philosophic movements.
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Niels Bohr, Physicist
Brief biography and philosophy of Niels Bohr, famous for the atomic structure model, the foundation of quantum mechanics.
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The Discovery of the Neutron
In 1932, James Chadwick proved that the atomic nucleus contained a neutral particle which had been proposed more than a decade earlier by Ernest Rutherford.
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Brighter Than a Thousand Suns by Robert Jungk
This classic work details the triumphs and tribulations of the world's great atomic scientists during and after their work on the most terrible weapons ever created.
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Physics Through the Ages: Part 1
Understanding how physics developed in the past helps us understand where it may be going in the future, but it also sheds insight on how we perceive the natural world.
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Biography of Physicist Robert Andrews Millikan
A brief biography of Robert A. Millikan, who won the 1923 Nobel prize in physics for his famous Millikan oil drop experiment.
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Evolution – The Absolute Basics
Charles Darwin's Theory of Evolution by Natural Selection is the explanation for the variety of life on Earth.
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Lucretius On the Nature of Things
The philosophy and work of Lucretius, Latin poet and great thinker, best-known for his one poem, De Rerum Natura or "On the Nature of Things."
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Science Reference for Everyone
Interested in science? Curious about how the world works? Take a journey with Bill Bryson through the known universe from the sub-atomic to the vastness of space.
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The Manhattan Project
In 1945, America dropped two atomic bombs on Japan killing as many as 220,000 people. But how did the US come to have such destructive weapons before anyone else?
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Ludwig Boltzmann's Statistics
When Atomic Theory began to grow in popularity during the nineteenth century, it did so in part thanks to the mathematical work of Austrian Physicist Ludwig Boltzmann.
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Making The Atomic Bomb
The development, test, and use of the first atomic bomb by the United States during World War II.
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Shad-darsana – Hinduism's "Six Views"
Hinduism's six orthodox philosophical schools deal variously with the soul and the body, with knowledge of the world and of God, and with mysticism and ritual.
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Intro to Modern Humanism, part 2: Ancient Precursors of Humanism
Part 2 of the Introduction to Modern Humanism describes the precursors of Humanism in ancient Greece and Rome.
humanism history greek roman greece


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