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Scientists find first evidence that many universes exist

(PhysOrg.com) -- By looking far out into space and observing what’s going on there, scientists have been led to theorize that it all started with a Big Bang, immediately followed by a brief period of ...

Physics / General Physics

created Dec 17, 2010 | popularity 4.4 / 5 (94) | comments 140 | with audio podcast weblog

Physicists Calculate Number of Parallel Universes

(PhysOrg.com) -- Over the past few decades, the idea that our universe could be one of many alternate universes within a giant multiverse has grown from a sci-fi fantasy into a legitimate theoretical possibility. ...

Physics / General Physics

created Oct 16, 2009 | popularity 3.2 / 5 (83) | comments 58 weblog

Time likely to end within 5 billion years, physicists calculate

(PhysOrg.com) -- As far as astrophysicists can tell, the universe is expanding at an accelerating rate, and will likely continue to do so indefinitely. But now some physicists are saying that this theory, ...

Physics / General Physics

created Oct 01, 2010 | popularity 3 / 5 (59) | comments 96 | with audio podcast report

Super-Sensors to Measure 'Signature' of Inflationary Universe (w/Video)

What happened in the first trillionth of a trillionth of a trillionth of a second after the Big Bang? Super-sensitive microwave detectors, built at the National Institute of Standards and Technology, may soon ...

Physics / General Physics

created May 03, 2009 | popularity 4.5 / 5 (27) | comments 8

Physicists search for new physics in primordial quantum fluctuations

(PhysOrg.com) -- Inflation, the brief period that occurred less than a second after the Big Bang, is nearly as difficult to fathom as the Big Bang itself. Physicists calculate that inflation lasted for just ...

Physics / Quantum Physics

created Mar 26, 2012 | popularity 4.6 / 5 (25) | comments 99 | with audio podcast feature

Across the multiverse: FSU physicist considers the big picture

(PhysOrg.com) -- Is there anybody out there? In Alejandro Jenkins' case, the question refers not to whether life exists elsewhere in the universe, but whether it exists in other universes outside of our own.

Physics / General Physics

created Jan 12, 2010 | popularity 3 / 5 (30) | comments 49 | with audio podcast

Leading the quest to crack cosmological mysteries

Sometimes a scientist can only laugh in the face of a seemingly insurmountable challenge.

Physics / General Physics

created Feb 13, 2012 | popularity 3.6 / 5 (14) | comments 125 | with audio podcast

In the early universe, rapid expansion or something very weird

(PhysOrg.com) -- The widely-accepted theory of cosmic inflation states that our universe expanded rapidly in the moments after its birth, resulting in the immense expanse we see today.

Physics / General Physics

created Feb 27, 2012 | popularity 3.6 / 5 (14) | comments 141 | with audio podcast

NASA to Probe the Universe's First Moments

(PhysOrg.com) -- Sophisticated new technologies created by NASA and university scientists are enabling them to build an instrument designed to probe the first moments of the universe's existence.

Space & Earth / Space Exploration

created Apr 29, 2010 | popularity 4.6 / 5 (8) | comments 0

New mass spectrometry technique clouds early European inflation theories

(PhysOrg.com) -- Using a new coupled mass spectrometry technique that employs multiple collectors, researchers in France have shown that it was not an influx of silver from the America's that caused high inflation ...

Chemistry / Analytical Chemistry

created May 27, 2011 | popularity 4.3 / 5 (8) | comments 3 | with audio podcast report

Cosmologists aim to observe first moments of universe

During the next decade, a delicate measurement of primordial light could reveal convincing evidence for the popular cosmic inflation theory, which proposes that a random, microscopic density fluctuation in ...

Space & Earth / Astronomy

created Feb 16, 2009 | popularity 4.3 / 5 (6) | comments 4

NASA Launches New Technology: An Inflatable Heat Shield

A successful NASA flight test Monday demonstrated how a spacecraft returning to Earth can use an inflatable heat shield to slow and protect itself as it enters the atmosphere at hypersonic speeds.

Space & Earth / Space Exploration

created Aug 17, 2009 | popularity 4.2 / 5 (5) | comments 0

Rocket to Launch Inflatable Re-entry Capsule

(PhysOrg.com) -- Inflatable aircraft are not a new idea. Hot air balloons have been around for more than two centuries and blimps are a common sight over many sports stadiums. But it's hard to imagine an inflatable ...

Space & Earth / Space Exploration

created Aug 14, 2009 | popularity 5 / 5 (3) | comments 2

31 percent of Indians are 'suffering': survey

More than three out of 10 Indians are "suffering", an increase from 24 percent last year, a survey from global polling group Gallup showed Monday.

Other Sciences / Other

created Apr 30, 2012 | popularity 3.3 / 5 (4) | comments 14

How new online tool accurately measures inflation

Inflation is a crucial economic indicator, since rising prices can hurt consumers and trigger political discontent. It is also hard to measure. In the United States, Bureau of Labor Statistics employees track over 20,000 ...

Other Sciences / Economics & Business

created Jan 14, 2011 | popularity 4 / 5 (2) | comments 0

Inflation

In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time. When the general price level rises, each unit of currency buys fewer goods and services. Consequently, inflation also reflects an erosion in the purchasing power of money – a loss of real value in the internal medium of exchange and unit of account in the economy. A chief measure of price inflation is the inflation rate, the annualized percentage change in a general price index (normally the Consumer Price Index) over time.

Inflation's effects on an economy are various and can be simultaneously positive and negative. Negative effects of inflation include a decrease in the real value of money and other monetary items over time, uncertainty over future inflation may discourage investment and savings, and high inflation may lead to shortages of goods if consumers begin hoarding out of concern that prices will increase in the future. Positive effects include ensuring central banks can adjust nominal interest rates (intended to mitigate recessions), and encouraging investment in non-monetary capital projects.

Economists generally agree that high rates of inflation and hyperinflation are caused by an excessive growth of the money supply. Views on which factors determine low to moderate rates of inflation are more varied. Low or moderate inflation may be attributed to fluctuations in real demand for goods and services, or changes in available supplies such as during scarcities, as well as to growth in the money supply. However, the consensus view is that a long sustained period of inflation is caused by money supply growing faster than the rate of economic growth.

Today, most mainstream economists favor a low, steady rate of inflation. Low (as opposed to zero or negative) inflation may reduce the severity of economic recessions by enabling the labor market to adjust more quickly in a downturn, and reduce the risk that a liquidity trap prevents monetary policy from stabilizing the economy. The task of keeping the rate of inflation low and stable is usually given to monetary authorities. Generally, these monetary authorities are the central banks that control the size of the money supply through the setting of interest rates, through open market operations, and through the setting of banking reserve requirements.

For more information about Inflation, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.