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.
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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? 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. Your group has identified the central goal of the philosophy of cosmology to be the pursuit of outstanding conceptual problems at the foundations of cosmology. And what's driving the renaissance? Images: 1.
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.
Absolute Shakespeare - plays, quotes, summaries, essays... NRAO Very Large Array 4 Sites with LOTS Of Completely Free Ebooks That Don’t Suck If you’re a fervent reader and nerd like I am, you’ve probably encountered quite a lot of writing online. However, most of them are either absolute garbage or entirely illegal. It’s hard to find good, legal reads online – unless you know where to look. If you know where to look, you can feast on these completely free Ebooks for all the time you’ve got, and today is the day we’ll show you where to look. Planet eBook Planet eBook is a classy site that offers classic literature for free. However, Planet eBook doesn’t just give you any piece of ‘free literature’. Furthermore, if you feel like a book is ‘missing’ from it’s collection, you put it up as a suggestion. All books on Planet eBook can be read on the site, but can also be downloaded as a PDF, both in a 1-page and 2-page version. ManyBooks ManyBooks works in the same way as Planet eBook, they offer pieces of classic literature for free that are out-of-copyright. Classic Reader PublicBookshelf
The Nine Planets Solar System Tour Invitation to World Literature Greek, by Euripides, first performed in 405 BCE The passionate loves and longings, hopes and fears of every culture live on forever in their stories. Here is your invitation to literature from around the world and across time. Sumerian, 2600 BCE and older Turkish, by Orhan Pamuk, 2000 Greek, by Homer, ca. eighth century BCE Greek, by Euripides, first performed in 405 BCE Sanskrit, first century CE Japanese, by Murasaki Shikibu, ca. 1014 Chinese, by Wu Ch'êng-ên, ca. 1580 Quiché-Mayan, written in the Roman alphabet ca. 1550s French, by Voltaire, 1759 English, by Chinua Achebe, 1959 Spanish, by Gabriel García Márquez, 1967 English, by Arundhati Roy, 1998 Arabic, first collected ca. fourteenth century
Lunar Eclipses for Beginners 2004 Lunar Eclipse SequenceThe total lunar eclipse of 2004 Oct 28 was widely visible from the USA.This sequence of images captures the eclipse from start (right) to finish (left). (click to see more images) (c) Copyright 2007 by Fred Espenak Introduction What is an eclipse of the Moon? The Moon is a cold, rocky body about 2,160 miles (3,476 km) in diameter. New Moon > New Crescent > First Quarter > Waxing Gibbous> Full Moon > Waning Gibbous > Last Quarter > Old Crescent > New Moon (again) Phases of the Moon. The phase known as New Moon can not actually be seen because the illuminated side of the Moon is then pointed away from Earth. To many of us, Full Moon is the phase of love and romance.When the Moon is Full, it rises at sunset and is visible all night long. Geometry of the Sun, Earth and Moon During an Eclipse of the MoonEarth's two shadows are the penumbra and the umbra. Types of Lunar Eclipses Astronomers recognize three basic types of lunar eclipses: 1. 2. 3. Observing Lunar Eclipses
Read ePub ebooks online : Bookworm ePub reader A free platform for reading ePub books online. Bookworm is now closed. Bookworm, “an experimental platform for storing and reading ePub-format books online,” is closed as of March 31, 2012. Developed by Threepress in 2008, and brought into O'Reilly Labs in early 2009, Bookworm has been an interesting and useful experiment—we learned a lot, and heard from users that they appreciated the service. Here are ePub reading environments we think are good alternatives for Bookworm users: AldikoBooki.shBlueFire ReaderEPUBReaderiBooksMegaReader
Astronomy | Video Courses on Academic Earth Astronomers use tools like telescopes, cameras and spectrographs to study interactions between materials and energy within the universe. These scientists learn about galaxies, solar systems, planets and stars through careful observation and measurement recording. Astronomers also refer to natural sciences and mathematics to form and test theories. An integral part of a student’s astronomy experience is the quality of equipment and facilities they have access to. Astronomy departments at the University of Hawaii at Manoa, Harvard University and the University of Tokyo give students access to some of the best observatories in the world. Sample Courses Astronomy majors at the undergraduate level will gain an introduction to this field by taking a survey course that covers the Milky Way Galaxy, the orbital behaviors of planets, telescope basics, star identification and cosmology. Possible Specializations Degree Types Bachelor’s Master’s Ph.D. Ideal Candidates for Astronomy Career Pathways