News tagged with interferometer

Holometer experiment to test if the universe is a hologram

(PhysOrg.com) -- Many ideas in theoretical physics involve extra dimensions, but the possibility that the universe has only two dimensions could also have surprising implications. The idea is that space on ...

Physics / General Physics

created Oct 28, 2010 | popularity 4.6 / 5 (54) | comments 130 | with audio podcast weblog

Quantum measurement precision approaches Heisenberg limit

(PhysOrg.com) -- In the classical world, scientists can make measurements with a degree of accuracy that is restricted only by technical limitations. At the fundamental level, however, measurement precision ...

Physics / Quantum Physics

created Feb 26, 2010 | popularity 4.8 / 5 (46) | comments 16 | with audio podcast feature

Most precise test yet of Einstein's gravitational redshift

(PhysOrg.com) -- While airplane and rocket experiments have proved that gravity makes clocks tick more slowly - a central prediction of Albert Einstein's general theory of relativity - a new experiment in ...

Physics / General Physics

created Feb 17, 2010 | popularity 5 / 5 (33) | comments 10 | with audio podcast

Primordial weirdness: Did the early universe have 1 dimension?

(PhysOrg.com) -- Did the early universe have just one spatial dimension? That's the mind-boggling concept at the heart of a theory that University at Buffalo physicist Dejan Stojkovic and colleagues proposed in 2010.

Physics / General Physics

created Apr 20, 2011 | popularity 4.3 / 5 (37) | comments 200 | with audio podcast

Does weak equivalence break down at the quantum level?

(PhysOrg.com) -- One of the givens in physics is the weak equivalence principle. This principle has been considered solid since Einstein proposed that it is not possible to detect the difference between uniform acceleration ...

Physics / General Physics

created Dec 08, 2009 | popularity 4.5 / 5 (26) | comments 19 feature

The music of gravitational waves

A team of scientists and engineers at NASA's Jet Propulsion Laboratory has brought the world one step closer to "hearing" gravitational waves -- ripples in space and time predicted by Albert Einstein in the ...

Physics / General Physics

created Nov 24, 2010 | popularity 4.9 / 5 (21) | comments 62 | with audio podcast

ESO team succeeds in linking telescopes at Paranal Observatory into giant VLT

(PhysOrg.com) -- Researchers working as part of the European Southern Observatory (ESO) at the Cerra Paranal Mountain Observatory in the Atacama Desert in Chile, have succeeded in virtually connecting all ...

Space & Earth / Astronomy

created Feb 06, 2012 | popularity 4.9 / 5 (19) | comments 2 | with audio podcast report

Researchers devise a way to make a simple quantum computer using holograms

(PhysOrg.com) -- Wouldn’t it be nice if we could just jump from using computers based on circuits to machines based on quantum bits (qubits)? Things would run ever so much faster. Alas, the problem is, ...

Physics / Quantum Physics

created Dec 21, 2011 | popularity 4.5 / 5 (17) | comments 2 | with audio podcast report

Earth-like Planets May Be Ready for Their Close-Up

(PhysOrg.com) -- Many scientists speculate that our galaxy could be full of places like Pandora from the movie "Avatar" -- Earth-like worlds in solar systems besides our own.

Space & Earth / Astronomy

created Jun 24, 2010 | popularity 4.9 / 5 (15) | comments 1 | with audio podcast

Unravelling the Mystery of Massive Star Birth: All Stars are Born the Same Way (w/ Video)

(PhysOrg.com) -- Astronomers have obtained the first image of a dusty disc closely encircling a massive baby star, providing direct evidence that massive stars form in the same way as their smaller brethren. ...

Space & Earth / Astronomy

created Jul 14, 2010 | popularity 4.7 / 5 (15) | comments 27 | with audio podcast

New interferometer could simplify materials research

(PhysOrg.com) -- “Most current hard x-ray interferometers are based on crystals, which require their high quality and high mechanical stability,” Anatoly Snigirev tells PhysOrg.com. “This can make x-ray interferometry quite ...

Physics / Optics & Photonics

created Aug 13, 2009 | popularity 5 / 5 (13) | comments 1 feature

Black Holes Lead Galaxy Growth

(PhysOrg.com) -- Astronomers may have solved a cosmic chicken-and-egg problem -- the question of which formed first in the early Universe -- galaxies or the supermassive black holes seen at their cores.

Space & Earth / Astronomy

created Jan 06, 2009 | popularity 4.6 / 5 (14) | comments 6

Keck Telescopes Take Deeper Look at Planetary Nurseries

(PhysOrg.com) -- Astronomers using the W. M. Keck Observatory have peered far into a young planetary system, giving an unprecedented view of dust and gas that might eventually form planets similar to Jupiter, ...

Space & Earth / Astronomy

created Dec 23, 2009 | popularity 4.8 / 5 (13) | comments 2

An Intriguing, Glowing Galaxy

A supermassive black hole may be responsible for the glowing appearance of galaxy 3C 305, located about 600 million light years away in the constellation Draco. Composite data from NASA’s Chandra X-ray Observatory ...

Space & Earth / Astronomy

created May 14, 2009 | popularity 4.1 / 5 (12) | comments 1

Double engine for a nebula

(PhysOrg.com) -- The new image, showing a very rich field of stars towards the Carina arm of the Milky Way, is centred on the star HD 87643, a member of the exotic class of B[e] stars [1]. It is part of a ...

Space & Earth / Astronomy

created Aug 05, 2009 | popularity 4.6 / 5 (10) | comments 8

Interferometry

Interferometry is the technique of diagnosing the properties of two or more lasers or waves by studying the pattern of interference created by their superposition. The instrument used to interfere the waves together is called an interferometer. Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology, oceanography, seismology, quantum mechanics, nuclear and particle physics, plasma physics, and remote sensing.

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