Science News & Science Current Events
 

Cosmological Constant Current Events | Cosmological Constant News

Page 1 of 8 | 193 Results
Previous0102030405060708   Next   
Sort By: Page Views | Date
Texas A&M researchers examine Einstein's theories on the universe
Einstein's self-proclaimed "biggest blunder" - his postulation of a cosmological constant (a force that opposes gravity and keeps the universe from collapsing) - may not be such a blunder after all, according to the research of an international team of scientists that includes two Texas... view more (2007-11-28)

Einstein's dark energy accelerates the universe
The enigmatic "dark energy" that drives the acceleration of the Universe behaves just like Einstein's famed cosmological constant.   view more (2005-11-28)

Italian, US cosmologists present alternate explanation for accelerating expansion of the universe: Was Einstein right when he said he was wrong?
Why is the universe expanding at an accelerating rate, spreading its contents over ever greater dimensions of space? An original solution to this puzzle, certainly the most fascinating question in modern cosmology, was put forward by four theoretical physicists, Edward W. Kolb of the U.S.... view more (2005-03-16)

Finding a Way to Test for Dark Energy
What is the mysterious dark energy that's causing the expansion of the universe to accelerate?   view more (2005-08-30)

Dark energy may be vacuum
Researchers at the University of Copenhagen's Dark Cosmology Centre at the Niels Bohr Institute have brought us one step closer to understanding what the universe is made of. As part of the international collaboration ESSENCE they have observed distant supernovae (exploding stars), some of which... view more (2007-01-17)

Dark energy -- 10 years on
Three quarters of our universe is made up of some weird, gravitationally repulsive substance that was only discovered ten years ago - dark energy.   view more (2007-11-30)

Ancient neutrinos could put string theory and quantum loop gravity to the test
Tiny but ageing neutrinos can be used to test the very foundations of quantum theory at unprecedented cosmological time scales.   view more (2005-10-14)

Examination of radiation left from birth of universe could alter theories
Using relic radiation from the birth of the universe, astrophysicists at the University of Illinois have proposed a new way of measuring the fine-structure constant in the past, and comparing it with today.   view more (2007-04-03)

UK scientists working towards a redefinition of the kilogram
Scientists at the National Physical Laboratory (NPL) have released new research results that could affect how we measure a kilogram - the last SI unit based on a manufactured object.   view more (2007-11-02)

Sacred constant might be changing
Physical constants are one of the cornerstones of physics - sacred numbers which we know to be fixed - but what if some of these constants are changing? Speaking at the Institute of Physics conference Physics 2005, Dr Michael Murphy of Cambridge University will discuss the "fine structure... view more (2005-04-05)

New understanding of blades to lead to better cutting of super-hard high tech materials
Advanced materials like AlTiC, sapphire and SiC are now commonly used in many devices. One popular area that they are applied in is read/write head sliders for computer hard drives.   view more (2006-06-28)

Measurements may help show if constants are changing
Physicists at JILA have performed the first-ever precision measurements using ultracold molecules, in work that may help solve a long-standing scientific mystery-whether so-called constants of nature have changed since the dawn of the universe.   view more (2006-05-01)

The gigantic respiration of crystalline solids
Previously, only amorphous polymer materials approached such levels of performance. On the other hand, these "gigantic respiration" and their respiration, which takes place at constant overall shape, is reversible. This discovery, of interest for numerous industrial applications, is... view more (2007-04-02)

Variable physical laws
Physical quantities such as the speed of light, the gravitational constant and the electron mass are believed to be the same independent of where and when they appear in the universe.   view more (2006-06-12)

Local interventions have little effect on metapopulation stability
Stabilizing fluctuations in the number of individuals in fragmented populations of threatened species is an important concern in conservation biology.   view more (2007-02-21)

Shrinking giants, exploding dwarves
When white dwarf stars explode, they leave behind a rapidly expanding cloud of 'stardust' known as a Type Ia supernova. These exploding events, which shine billions of times brighter than our sun, are all presumed to be extremely similar, and thus have been used extensively as cosmological... view more (2007-08-28)

Astronomers weigh neutrinos with the universe
Neutrinos, the lightest of the known elementary particles, weigh a billionth (one part in a thousand million) of a hydrogen atom at most, and can account for no more than one-fifth of the dark matter in the Universe, according to findings by astronomers in Cambridge, who used data from the... view more (2002-04-04)

Personalised doses of insulin
Diabetes is a widespread illness affecting 5 per cent of the population. In diabetics the metabolism produces an excess of glucose in the blood and, as a result, a number of sufferers need doses of insulin which allows them to regulate their glucose levels. Currently, the method of administering... view more (2003-02-05)

New Quasar Studies Keep Fundamental Physical Constant Constant
Very Large Telescope sets stringent limit on possible variation of the fine-structure constant over cosmological time Detecting or constraining the possible time variations of fundamental physical constants is an important step toward a complete understanding of basic physics and hence the world in... view more (2004-03-31)

Scientists Detect Cosmic 'Dark Flow' Across Billions of Light Years
Using data from NASA's Wilkinson Microwave Anisotropy Probe (WMAP), scientists have identified an unexpected motion in distant galaxy clusters. The cause, they suggest, is the gravitational attraction of matter that lies beyond the observable universe.   view more (2008-09-24)

Blink, and the brain misses it
We would immediately notice if the outside world suddenly went dark every few seconds. But we rarely become aware of our blinks, even though they cause a similar reduction in the amount of light entering the eye. So why are we not aware of the frequent mini-blackouts caused by blinks?   view more (2005-07-26)

Chandra independently determines Hubble constant
A critically important number that specifies the expansion rate of the Universe, the so-called Hubble constant, has been independently determined using NASA's Chandra X-ray Observatory.   view more (2006-08-10)

Mysterious cosmic rays linked to galactic powerhouses
The sprawling Auger Cosmic Ray Observatory in South America has produced its first major discovery while still under construction.   view more (2007-11-09)

Rice develops first method to sort nanotubes by size
Rice University scientists have developed the first method for sorting semiconducting carbon nanotubes based on their size, a long-awaited development that could form the basis of a nanotube purification system capable of producing the necessary feedstocks for nano-circuits, therapeutic agents,... view more (2006-06-26)

New evidence for dark energy in the universe
An international team of astronomers, led by scientists at the University of Manchester have produced new evidence that most of the energy in the Universe is in the form of the mysterious "Dark Energy". The new evidence comes from a 10-year census of the sky for examples of gravitational lenses,... view more (2002-11-09)
Page 1 of 8 | 193 Results
Previous0102030405060708   Next   
Sort By: Page Views | Date
© 2008 BrightSurf.com