10 research outputs found

    Cosmological Avatars of the Landscape II: CMB and LSS Signatures

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    This is the second paper in the series that confronts predictions of a model of the landscape with cosmological observations. We show here how the modifications of the Friedmann equation due to the decohering effects of long wavelength modes on the wavefunction of the Universe defined on the landscape leave unique signatures on the CMB spectra and large scale structure (LSS). We show that the effect of the string corrections is to suppress σ8\sigma_8 and the CMB TTTT spectrum at large angles, thereby bringing WMAP and SDSS data for σ8\sigma_8 into agreement. We find interesting features imprinted on the matter power spectrum P(k)P(k): power is suppressed at large scales indicating the possibility of primordial voids competing with the ISW effect. Furthermore, power is enhanced at structure and substructure scales, k1020h Mpc1k\simeq 10^{-2-0} h~{\rm Mpc}^{-1}. Our smoking gun for discriminating this proposal from others with similar CMB and LSS predictions come from correlations between cosmic shear and temperature anisotropies, which here indicate a noninflationary channel of contribution to LSS, with unique ringing features of nonlocal entanglement displayed at structure and substructure scales.Comment: 7 pages, 4 figure

    Einstein's Jury: The Race to Test Relativity

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    Einstein's Jury is the dramatic story of how astronomers in Germany, England, and America competed to test Einstein's developing theory of relativity. Weaving a rich narrative based on extensive archival research, Jeffrey Crelinsten shows how these early scientific debates shaped cultural attitudes we hold today. The book examines Einstein's theory of general relativity through the eyes of astronomers, many of whom were not convinced of the legitimacy of Einstein's startling breakthrough. These were individuals with international reputations to uphold and benefactors and shareholders to pEinstein's Jury is the dramatic story of how astronomers in Germany, England, and America competed to test Einstein's developing theory of relativity. Weaving a rich narrative based on extensive archival research, Jeffrey Crelinsten shows how these early scientific debates shaped cultural attitudes we hold today. The book examines Einstein's theory of general relativity through the eyes of astronomers, many of whom were not convinced of the legitimacy of Einstein's startling breakthrough. These were individuals with international reputations to uphold and benefactors and shareholders to please, yet few of them understood the new theory coming from the pen of Germany's up-and-coming theoretical physicist, Albert Einstein. Some tried to test his theory early in its development but got no results. Others--through toil and hardship, great expense, and perseverance--concluded that it was wrong. A tale of international competition and intrigue, Einstein's Jury brims with detail gleaned from Crelinsten's far-reaching inquiry into the history and development of relativity. Crelinsten concludes that the well-known British eclipse expedition of 1919 that made Einstein famous had less to do with the scientific acceptance of his theory than with his burgeoning public fame. It was not until the 1920s, when the center of gravity of astronomy and physics shifted from Europe to America, that the work of prestigious American observatories legitimized Einstein's work. As Crelinsten so expertly shows, the glow that now surrounds the famous scientist had its beginnings in these early debates among professional scientists working in the glare of the public spotlight

    Eddington and Einstein, scientists and wartime visionaries

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    Reactions:The new (para-) military urbanism

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    In this chapter I argue that the new wave of urban guerrillas needs to be countered by appropriate counter-measures by law enforcement, paramilitary and military forces who also have to move into cities in order to defend them. I start the chapter with a more detailed introduction into the art of Critical Infrastructure Protection (CIP), commenting on the difficulties of protecting our open societies against modern forms of terrorism or ‘urban guerrilla warfare’. Next, I critically discuss the two basic (ideal type) models on how to respond to the terrorist threat: the Criminal Justice Model (CJM) and the War Model (WM). Drawing on riots in a number of French banlieues (suburbs) and on the London 2011 riots, I also point out that terrorists are only the tip of the iceberg when it comes to the outbreak of latent conflicts in modern urban sprawls. I conclude this section with a first brief look at the question of how far liberal democracies can go in order to respond to the terrorist threat.</p

    Evolution at the Speed of Thought: A New Chapter in the History of Evolution

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    Erwin Finlay Freundlich and Testing Einstein's Theory of Relativity

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