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Probing the Geometry of Space - Mathematics circa 1900
David Rowe Johannes Gutenberg University Mainz
PIRSA:05100021 -
1905: The Philosophical Context
PIRSA:05100020 -
Complementarity, Entanglement - and No End to Uncertainty
Paul Busch University of York
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What is the phase structure of N=4 SYM theory?
Sean Hartnoll Stanford University
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The entanglement interpretation of black hole entropy
Ramy Brustein Ben-Gurion University of the Negev
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Bistro Banter- Inventors, Inventions, Conquerors and Conquests - The Ingredients for Success
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Mike Lazaridis Quantum Valley Investments
PIRSA:05100016 -
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New Technologies and Inventions of Space and Time
PIRSA:05100065
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Albert Einstein: The Man Behind the Genius - for ages 12 and up
PIRSA:05100025Albert Einstein remains one of most famous scientists in world history. His image is instantly recognizable and for many people, Einstein personifies genius. But who was Einstein really? What was he like as a person? What did his science actually mean? From his years in Europe where he was known mainly for his scientific genius to his life in the United States where his scientific contributions declined as he aged as he became more involved in the political, humanitarian, and social concerns, Alice Calaprice, co author of Albert Einstein, a biography explores the man behind the genius. Alice Calaprice, Einstein, family, biography, early years, young, -
Einstein\'s Rise to Fame
David Rowe Johannes Gutenberg University Mainz
PIRSA:05100024In November 1919 the British scientific community announced the confirmation of Einstein\'s prediction for the bending of light by the suns gravitational field. This announcement made sensational headlines in British and American papers, and soon thereafter Einstein was thrust into the stratosphere of stardom. To appreciate this phenomenon requires taking a closer look at the role of leading image makers of the day, particularly in Weimar era Germany. The intense media coverage of Einstein and his theory did much to stimulate event fascination, producing results that were at times odd, occasionally ridiculous, and in some cases polarizing, like so many other phenomena of Weimar culture. To the extent that the relativity revolution reflected a new sensibility with deep psychological roots it could not have found more fertile soil than in Einsteins Berlin. David Rowe, Einstein, fame, England, politics, relativity, space-time, Minkoski, Mach, inertia, Newton, Einstein tower, oberada,Moszkowski, Weimar culture, anti-relativity, Gehrcke, Anti-Semitism, newsprint -
1905 - A Literary Response to Modernity
Stanley Corngold Princeton University
PIRSA:05100022This talk deals with representative works of German and Hapsburg fiction ca. 1905a literature produced by the genius of Thomas Mann (1875-1955), Rainer Maria Rilke (1875-1926), Robert Musil (1880-1942) and Franz Kafka (1883-1924), registering swiftly changing perceptions of human time and space owing to the frenetic pace of Central European modernizationof technical innovations in the manufacture of commodities; of the acquisition of wealth, producing changes in class-structure; of the growth of cities, creating centers of simultaneous but dissociated activity requiring new medial connectionprocesses greeted by some writers as matters of great intellectual interest, by others as signs of the pathological breakdown of older norms and values. Stanley Corngold, time, space, Thomas Mann, Rainer Maria Rilke, Robert Musil, Franz Kafka, modernity, Georg Lukacs, symbolism, duality, fiction, german, perception modernization, norms, values, literature, early 20th century, 19th century, Goethe, prose -
Probing the Geometry of Space - Mathematics circa 1900
David Rowe Johannes Gutenberg University Mainz
PIRSA:05100021One of the most hotly debated topics of the late nineteenth century concerned the geometry of physical space, an issue that arose with the discovery of non-Euclidean geometries. Lobachevsky and Bolyai opened the way, but it was not until the 1860s that scientists began to take this revolutionary theory seriously. Assuming the free mobility of rigid bodies, Helmholtz concluded that the geometry of space was Euclidean or else of constant curvature (either positive of negative). In 1899 these cases were tested by the astronomer Karl Schwarzschild who used data on stellar parallax to estimate the minimum size of the universe. Many argued that the notion of a curved space was nonsensical, whereas Poincaré, the most prominent mathematician of the era, thought that the geometry of space could never be determined absolutely. These classical debates played a major role in the discussions spawned by Einsteins general theory of relativity. David Rowe, geometry, space-mathematics, Euclid, Carl Friedrich Gauss, Gaussian curvature, Gaussian Theory, Einstein, differential geometry, playfair, spherical triangles, platonic solids, Netwon, non-Euclidean geometry, Riemann, Ricci, Poincare, Klein -
1905: The Philosophical Context
PIRSA:05100020What was happening in Philosophy in 1905? This lecture will seek to answer that question by picking out some of the most influential works of philosophy that were published in or shortly before that year, describing both those works themselves and their intellectual context. The works discussed will include Henri Poincare\'s Science and Hypothesis, Edmund Husserl\'s Logical Investigations, Gottlob Frege\'s Fundamental Laws of Arithmetic and Bertrand Russell\'s \'On Denoting\'. What I hope to bring out is how the seminal works of that period established the tone and content of twentieth century philosophy and drew the battlelines of the great philosophical disputes of the last hundred years: Intuitionism versus Logicism, Phenomenology versus Analytic Philosophy, etc. Ray Monk, Philosophy, Poincare, science, Bertrand Russell, intuitism, logicism, metaphysics, analytic, phenomenology, mathematics, Gottlob Frege, 20th century, arithmetic -
Complementarity, Entanglement - and No End to Uncertainty
Paul Busch University of York
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What is the phase structure of N=4 SYM theory?
Sean Hartnoll Stanford University
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The entanglement interpretation of black hole entropy
Ramy Brustein Ben-Gurion University of the Negev
We show that the entropy resulting from the counting of microstates of non extremal black holes using field theory duals of string theories can be interpreted as arising from entanglement. The conditions for making such an interpretation consistent are discussed. First, we interpret the entropy (and thermodynamics) of spacetimes with non degenerate, bifurcating Killing horizons as arising from entanglement. We use a path integral method to define the Hartle-Hawking vacuum state in such spacetimes and discuss explicitly its entangled nature and its relation to the geometry. If string theory on such spacetimes has a field theory dual, then, in the low-energy, weak coupling limit, the field theory state that is dual to the Hartle-Hawking state is a thermofield double state. This allows the comparison of the entanglement entropy with the entropy of the field theory dual, and thus, with the Bekenstein-Hawking entropy of the black hole. As an example, we discuss in detail the case of the five dimensional anti-de Sitter, black hole spacetime. -
Bistro Banter- Inventors, Inventions, Conquerors and Conquests - The Ingredients for Success
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Mike Lazaridis Quantum Valley Investments
PIRSA:05100016Robert Friedel, Howard Burton, Mike Lazaridis, Robert Friedel, technology, exploration, inventors, conquerors, ideas, history of science, inventions -
From Marconi to Lazaridis – The Age of Wireless Communication
PIRSA:05100064Wireless Communication amazed the world at the turn of the century. That astounding early technology has morphed into one of the hottest communications devices on the market today. Technology historian Robert Friedel and Mike Lazaridis, inventor of the BlackBerry, bring you the story of wireless communication. -
Exploration to the Ends of the Earth: Roald Amundsen, the Quest for the Northwest Passage and the Quest for the Poles
PIRSA:05100015In 1905, Norwegian explorer Roald Amundsen completed the first ever transit of the fabled Northwest Passage, culminating a centuries long quest that had claimed ships and lives. Amundsen\'s feat was one of many human achievements in the first decade of the new century, and a landmark in the history exploration. Amundsen\'s voyage was preceded by the controversial North Pole expedition of Robert Peary, another long sought prize of explorers. Amundsen\'s quests shifted south to Antarctica and the South Pole, a prize he achieved, and then back to the Arctic, when he tried and failed to navigate, locked in the polar ice, to the North Pole. This presentation will examine the life, feats, trials, failures and successes of Amundsen. James P.Delgado, Roald Amundsen, northwest passage, north pole, south pole, exploration, Arctic, Frobisher, Peary, Franklin, Clark, Ross, Mclure, -
New Technologies and Inventions of Space and Time
PIRSA:05100065Albert Einstein worked in the Swiss Patent Office in 1905. What was the new world of technology that a patent examiner would have confronted in the young century? Robert Friedel, historian of technology and author of several books on inventions of this period shows why this period a century ago was as exciting and disorienting an age of technological change as our own--maybe even more so! The horseless carriage (we would call it the automobile), the wireless telegraph, motion pictures, electric light and power, as well as a host of surprising new minor inventions, all filled the young twentieth century with an air of novelty and expectation.