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Latest General relativity Stories

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2005-06-30 13:05:00

Using ESO's Very Large Telescope, R©mi Cabanac and his European colleagues have discovered an amazing cosmic mirage, known to scientists as an Einstein Ring. This cosmic mirage, dubbed FOR J0332-3557, is seen towards the southern constellation Fornax (the Furnace), and is remarkable on at least two counts. First, it is a bright, almost complete Einstein ring. Second, it is the farthest ever found. "There are only a very few optical rings or arcs known, and even less so in which the lens...

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2005-06-30 07:10:00

Astronomers Using the VLT Discover Bright Cosmic Mirage Far Away ESO -- Using ESO's Very Large Telescope, R©mi Cabanac and his European colleagues have discovered an amazing cosmic mirage, known to scientists as an Einstein Ring. This cosmic mirage, dubbed FOR J0332-3557, is seen towards the southern constellation Fornax (the Furnace), and is remarkable on at least two counts. First, it is a bright, almost complete Einstein ring. Second, it is the farthest ever found. "There are only...

ad64f9e486a05eeaa50891be006ef8631
2005-05-31 07:05:00

NASA -- A scientist using NASA's Chandra X-ray Observatory has found evidence that two white dwarf stars are orbiting each other in a death grip, destined to merge. The data indicate gravitational waves are carrying energy away from the star system at a prodigious rate, making it a prime candidate for future missions designed to directly detect these ripples in space-time. Einstein's General Theory of Relativity predicted a binary star system should emit gravitational waves that rush away...

9d02d20606ce6d6063f4a73d917adc951
2005-04-16 13:50:00

He stopped traffic on Fifth Avenue like the Beatles or Marilyn Monroe. He could've been president of Israel or played violin at Carnegie Hall, but he was too busy thinking. His musings on God, love and the meaning of life grace our greeting cards and day-timers. Fifty years after his death, his shock of white hair and droopy mustache still symbolize genius. Who else could it be but Albert Einstein? Einstein remains the foremost scientist of the modern era. Looking back 2,400 years, only...

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2005-04-14 00:50:00

IOP -- Contrary to established scientific thinking, you'd be roasted and not "spaghettified" if you stumbled into a supermassive black hole. New research being presented at the Institute of Physics conference Physics 2005 in Warwick will take a new look at the diet of the universe's most intriguing object, black holes. Black holes stand at the very edge of scientific theory. Most scientists believe they exist, although many of their theories break down under the extreme conditions within. But...

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2005-04-13 18:50:14

Helsinki -- The concept of time is self-evident. An hour consists of a certain number of minutes, a day of hours and a year of days. But we rarely think about the fundamental nature of time. Time is passing non-stop, and we follow it with clocks and calendars. Yet we cannot study it with a microscope or experiment with it. And it still keeps passing. We just cannot say what exactly happens when time passes. Time is represented through change, such as the circular motion of the moon around...

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2005-04-06 08:04:12

RAS -- For almost 100 years, scientists have been searching for direct evidence of the existence of gravity waves "“ faint ripples in the fabric of spacetime predicted in Albert Einstein's theory of General Relativity. Today, the hunt for gravity waves has become a worldwide effort involving hundreds of scientists. A number of large, ground-based facilities have been developed in Europe, the United States and Japan, but the most sophisticated search of all will soon take place in...

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2005-03-28 09:10:00

By measuring the shape of space with exquisite precision, NASA's Gravity Probe B aims to confirm Einstein's theory of relativity ... or provide the first evidence against it. Science@NASA -- This year marks the 100th anniversary of a revolution in our notions of space and time. Before 1905, when Albert Einstein published his theory of special relativity, most people believed that space and time were as Sir Isaac Newton described them back in the 17th century: Space was the fixed, unchanging...

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2005-03-11 07:20:00

Penn State -- Black holes have a reputation for voraciously eating everything in their immediate neighborhood, but these large gravity wells also affect electromagnetic radiation and may hinder our ability to ever locate the center of the universe, according to an international research team. "Any attempt to discover what was happening a long time ago at the beginning of our universe must take into account what gravitationally assisted negative refraction does to the radiation being viewed,"...

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2005-03-05 05:35:00

NASA -- Thirty-five years after Moon-walking astronauts placed special reflectors on the lunar surface, scientists have used these devices to test Albert Einstein's general theory of relativity to unprecedented accuracy. The findings, which also confirm theories from Galileo Galilei and Isaac Newton, may help to explain physical laws of the universe and benefit future space missions. "Our research with the Lunar Laser Ranging experiment probes the equivalence principle, a foundation of...


Latest General relativity Reference Libraries

Nature Physics
2012-05-18 15:50:42

Nature Physics is a peer-reviewed scientific journal established in 2005 and published monthly by the Nature Publishing Group. The editor-in-chief is Alison Wright, who is a full-time professional editor employed by the journal. The journal publishes original research, letters, full-length articles, review articles, news, views, physics research highlights, commentaries, book reviews, and correspondence. The main focus is pure and applied physics research, encompassing core physics...

General Relativity and Gravitation
2012-04-29 19:54:56

General Relativity and Gravitation is a peer-reviewed scientific journal published monthly since its establishment in 1970. It is published by Springer on behalf of the International Society on General Relativity and Gravitation. G.F.R. Ellis and H. Nicolai are the editors-in-chief. The journal covers modern gravitational physics, encompassing all theoretical and experimental aspects of general relativity and gravitation. The journal’s main goals include public outreach through teaching...

Foundations of Physics
2012-04-29 19:30:54

Foundations of Physics is a monthly-published journal devoted to the conceptual bases and fundamental theories of modern physics and cosmology, emphasizing the logical, methodological, and philosophical premises of modern physical theories and procedures. The journal publishes results and observations based on fundamental questions from all major fields of physics: quantum mechanics, quantum field theory, special relativity, general relativity, string theory, M-theory, cosmology,...

8_d060f6ab17568c81db54c0a009a2782b2
2004-10-19 04:45:44

String Theory -- A string theory is a physical model whose fundamental building blocks are extended objects (strings, membranes and higher-dimensional objects) rather than points. String theories are able to avoid problems, such as infinite energy density, associated with the presence of mathematical points in a physical theory. The term 'string theory' properly refers to both the 26 dimensional bosonic string theories and to the 10 dimensional superstring theories discovered by...

6_4f38efb28e39334beaa2581d21c011e42
2004-10-19 04:45:42

Spacetime -- In special relativity and general relativity, time and three-dimensional space are treated together as a single four-dimensional manifold called spacetime (alternatively, space-time; see below). A point in spacetime may be referred to as an event. Each event has four coordinates (t, x, y, z). Just as the x, y, z coordinates of a point depend on the axes one is using, so distances and time intervals, invariant in Newtonian physics, may depend on the reference frame of an...

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