Share Book Recommendations With Your Friends, Join Book Clubs, Answer Trivia Errors in the "The Big Bang Never Happened" Top | Criticism | Alternative | Miscellaneous | Bottom Eric Lerner starts his book "The Big Bang Never Happened" (hereafter BBNH) with the "errors" that he thinks invalidate the Big Bang. These are Are these criticisms correct? Let us look at the superclusters first. Lerner gives the example of filaments or sheets 150 million light years apart in Figure 1.1, and then asserts that material would have to travel 270 million light years to make the structure. Furthermore, velocities relative to the Hubble flow naturally decrease with time, so the 1000 km/sec velocity was larger in the past. For example, the neutrinos in the hot dark matter model are just coasting, or "free streaming". v = H*D*Omega0.6 Using Lerner's value of 1000 km/sec, and a distance of 75 million light years, and Ho = 50 km/sec/Mpc, we find perfect agreement as long as Omega is close to 1. So where was the "crisis"? Lerner quotes George Field saying there was a crisis, but doesn't give a citation in the book.
EZB-Entscheidung: Draghi gibt Banken Zucker – und droht mit der Peitsche - Konjunktur Soziale Netzwerke dauerhaft einschalten BratislavaDie Banken in der Euro-Zone können sich noch mindestens ein Jahr lang unbegrenzt Geld bei der Europäischen Zentralbank (EZB) leihen. Diese Regelung werde mindestens bis zum 9. Juli 2014 verlängert, kündigte EZB-Präsident Mario Draghi am Donnerstag an. „Unsere Maßnahmen kommen allen Banken zu Gute“, sagte Draghi. Ursprünglich wäre die Rundumversorgung im Juli 2013 ausgelaufen. Bei ihrer Sitzung in Bratislava senkte die Europäische Zentralbank ihren Schlüsselzins von 0,75 auf das Rekordtief von 0,5 Prozent. Billiges Geld: Schlechte Zeiten für Sparer Warum macht die EZB das Geld im Euroraum noch billiger? Die EZB könnte die Banken zu einer stärkeren Kreditvergabe animieren, indem sie künftig eine Art Strafgebühr zahlen müssen, wenn sie Geld bei der Zentralbank parken. Banken können Geld bei der EZB parken, wofür sie in normalen Zeiten Zinsen bekommen. Stimmen zum Zinsentscheid der EZB Die Zinsschritte der EZB in der Krise 8.
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What Happened Before the Big Bang? The New Philosophy of Cosmology - Ross Andersen - Technology What existed before the big bang? What is the nature of time? Is our universe one of many? On the big questions science cannot (yet?) answer, a new crop of philosophers are trying to provide answers. Last May, Stephen Hawking gave a talk at Google's Zeitgeist Conference in which he declared philosophy to be dead. In December, a group of professors from America's top philosophy departments, including Rutgers,* Columbia, Yale, and NYU, set out to establish the philosophy of cosmology as a new field of study within the philosophy of physics. One of the founding members of the American group, Tim Maudlin, was recently hired by New York University, the top ranked philosophy department in the English-speaking world. Yesterday I spoke with Maudlin by phone about cosmology, multiple universes, the nature of time, the odds of extraterrestrial life, and why Stephen Hawking is wrong about philosophy. Maudlin: So, I guess I would divide that into two classes. And what's driving the renaissance?
Every Black Hole Contains a New Universe Inside Science Minds presents an ongoing series of guest columnists and personal perspectives presented by scientists, engineers, mathematicians, and others in the science community showcasing some of the most interesting ideas in science today. (ISM) -- Our universe may exist inside a black hole. This may sound strange, but it could actually be the best explanation of how the universe began, and what we observe today. Successful as it is, there are notable unsolved questions with the standard big bang theory, which suggests that the universe began as a seemingly impossible "singularity," an infinitely small point containing an infinitely high concentration of matter, expanding in size to what we observe today. But these theories leave major questions unresolved. The idea that our universe is entirely contained within a black hole provides answers to these problems and many more. The first is general relativity, the modern theory of gravity.
Authorama - Public Domain Books Earth-class Planets Line Up | LiveScience In this space wallpaper, this chart compares the first Earth-size planets found around a sun-like star to planets in our own solar system, Earth and Venus. NASA's Kepler mission discovered the new found planets, called Kepler-20e and Kepler-20f. Kepler-20e is slightly smaller than Venus with a radius .87 times that of Earth. Kepler-20f is a bit larger than Earth at 1.03 times the radius of Earth. Venus is very similar in size to Earth, with a radius of .95 times that our planet. Prior to this discovery, the smallest known planet orbiting a sun-like star was Kepler-10b with a radius of 1.42 that of Earth, which translates to 2.9 times the volume. Both Kepler-20e and Kepler-20f circle in close to their star, called Kepler-20, with orbital periods of 6.1 and 19.6 days, respectively. There are three other larger, likely gaseous planets also know to circle the same star, known as Kepler-20b, Kepler-20c and Kepler-20d. Credit: NASA/Ames/Caltech.
Field Guide to X-ray Astronomy :: Stellar Evolution Stellar Evolution The Milky Way Galaxy contains several hundred billion stars of all ages, sizes and masses. One of the central quests of astronomy is to understand how these star form, shine for billions of years, and eventually fade quietly into the dark as white dwarf, or go out with a bang as supernovas. Chandra and other X-ray telescopes focus on the high-energy action of this drama - sudden outbursts on the turbulent surfaces of stars, gale-force outflows of gas from hot, luminous stars, and awesome shock waves generated by supernova explosions. Overview of Stellar Evolution A Star is Born A star is born when a cloud of gas and dust collapses to the point where the material in the center of the clump is so dense and hot that the nuclear fusion of hydrogen nuclei into helium nuclei can occur. Hydrogen Burning Core (Main Sequence) Fusion of hydrogen into helium in the core of star can sustain a star such as the Sun for billions of years. Red Giants. Mass Matters.
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The Nine Planets Solar System Tour