A simulation of the decay of a Higgs boson in a linear collider detector. (Image courtesy of Norman Graf.) |
See:
CERN Accelerating science
A simulation of the decay of a Higgs boson in a linear collider detector. (Image courtesy of Norman Graf.) |
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Density Parameter, Ω |
Critical Density for the Expanding Universe |
The Sun lies about 8.5 kpc from the galactic center of the Milky Way galaxy, and the visible spiral arms and globular clusters extend out to about 15 kpc. Radio frequency methods should detect gas and dust past this radius, but not much is found. It was expected that the orbital velocity of that matter which is detected should diminish, but it stays more or less constant well beyond any significant detectable mass concentrations. The orbital velocity data clearly indicates the presence of gravitational mass, and the term "dark matter" is used to describe it. |
In the above list I have excluded the case of quantum black holes (where the CMS limits are in the 4 to 5.3 TeV range and the ATLAS limits are in the 3.85-4.19 TeV range) because of the lack of a coincident set of assumptions in deriving the actual results, making it less meaningful to compare numbers. See: CMS Vs ATLAS On Dijet Resonances: Who Wins ?
Tommaso Dorigo: A transverse cut-away view of the CMS detector is shown below, with the different signals that arise from the interaction of different particles. |
Virtual Photons Become Real in a Vacuum
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The zero-point energy stored in the modes of an electromagnetic cavity has experimentally detectable effects, giving rise to an attractive interaction between the opposite walls, the static Casimir effect. A dynamical version of this effect was predicted to occur when the vacuum energy is changed either by moving the walls of the cavity or by changing the index of refraction, resulting in the conversion of vacuum fluctuations into real photons. Here, we demonstrate the dynamical Casimir effect using a Josephson metamaterial embedded in a microwave cavity at 5.4 GHz. We modulate the effective length of the cavity by flux-biasing the metamaterial based on superconducting quantum interference devices (SQUIDs), which results in variation of a few percentage points in the speed of light. We extract the full 4 × 4 covariance matrix of the emitted microwave radiation, demonstrating that photons at frequencies symmetrical with respect to half of the modulation frequency are generated in pairs. At large detunings of the cavity from half of the modulation frequency, we find power spectra that clearly show the theoretically predicted hallmark of the Casimir effect: a bimodal, “sparrow-tail” structure. The observed substantial photon flux cannot be assigned to parametric amplification of thermal fluctuations; its creation is a direct consequence of the noncommutativity structure of quantum field theory. See: Dynamical Casimir effect in a Josephson metamaterial
23% of the matter/energy balance of the universe is the form of dark matter, mysterious type of particles 6 times more abundant than normal matter which shape gravitationally all galaxies and dominates the evolution of the visible universe.Alpha Magnetic Spectrometer
The husks of exploded stars produce some of the fastest particles in the cosmos. New findings by NASA's Fermi show that two supernova remnants accelerate protons to near the speed of light. The protons interact with nearby interstellar gas clouds, which then emit gamma rays. Credit: NASA's Goddard Space Flight Center See:Fermi Proves Supernova Remnants Make Cosmic Rays
On July 19, 2012, an eruption occurred on the sun that produced a moderately powerful solar flare and a dazzling magnetic display known as coronal rain. Hot plasma in the corona cooled and condensed along strong magnetic fields in the region. Magnetic fields, are invisible, but the charged plasma is forced to move along the lines, showing up brightly in the extreme ultraviolet wavelength of 304 Angstroms, and outlining the fields as it slowly falls back to the solar surface See: Raining Loops on the Sun
Credits: X-ray: NASA/CXC/MIT/L.Lopez et al; Infrared: Palomar; Radio: NSF/NRAO/VLA |
The highly distorted supernova remnant shown in this image may contain the most recent black hole formed in the Milky Way galaxy. The image combines X-rays from NASA's Chandra X-ray Observatory in blue and green, radio data from the NSF's Very Large Array in pink, and infrared data from Caltech's Palomar Observatory in yellow.
The remnant, called W49B, is about a thousand years old, as seen from Earth, and is at a distance about 26,000 light years away.
The supernova explosions that destroy massive stars are generally symmetrical, with the stellar material blasting away more or less evenly in all directions. However, in the W49B supernova, material near the poles of the doomed rotating star was ejected at a much higher speed than material emanating from its equator. Jets shooting away from the star's poles mainly shaped the supernova explosion and its aftermath.
By tracing the distribution and amounts of different elements in the stellar debris field, researchers were able to compare the Chandra data to theoretical models of how a star explodes. For example, they found iron in only half of the remnant while other elements such as sulfur and silicon were spread throughout. This matches predictions for an asymmetric explosion. Also, W49B is much more barrel-shaped than most other remnants in X-rays and several other wavelengths, pointing to an unusual demise for this star....... See:Supernova Remnant W49B
ISS030-E-078095 (6 Feb. 2012) --- One of the Expedition 30 crew members
aboard the International Space Station took this nighttime photograph of
much of the eastern (Atlantic) coast of the United States. Large
metropolitan areas and other easily recognizable sites from the
Virginia/Maryland/Washington, D.C. area spanning almost to Rhode Island
are visible in the scene. Boston is just out of frame at right. Long
Island and the Greater Metropolitan area of New York City are visible in
the lower right quadrant. Large cities in Pennsylvania (Philadelphia
and Pittsburgh) are near center. Parts of two Russian vehicles parked at
the orbital outpost are seen in left foreground. |
Michael A. Persinger (born June 26, 1945) is a cognitive neuroscience researcher and university professor with over 200 peer-reviewed publications. He has worked at Laurentian University, located in Sudbury, Ontario, since 1971. He is primarily notable for his experimental work in the field of neurotheology, work which has been increasingly criticized in recent years.[1][2][3][4][5][6] Persinger MA[Author] Papers |
Michael Persinger’s Group at Laurentian University, Canada, have obtained groundbreaking new results in consciousness, quantum brain & nonlocality research which are published in this Special Issue. These new results together with what have already been achieved in these fields in the past such as the results of Hu & Wu, Persinger’s team and some of other researchers have important implications for further advancements of these fields.See: Groundbreaking New Results in Consciousness, Quantum Brain & Nonlocality ResearchSee:
A few might see a world of possibility in Persinger's theories. His booth has helped us discover and confirm our true predicament. "Seeing God" is really just a soothing euphemism for the fleeting awareness of ourselves alone in the universe: a look in that existential mirror. The "sensed presence" - now easily generated by a machine pumping our brains with electromagnetic spirituality - is nothing but our exquisite and singular self, at one with the true solitude of our condition, deeply anxious. We're itching to get out of here, to escape this tired old environment with its frayed carpets, blasted furniture, and shabby old God. Time to move on and discover true divinity all over again. This Is Your Brain on God By Jack Hitt
The Errors & Animadversions of Honest Isaac Newton
by Sheldon Lee Glashow
ABSTRACT:
Isaac Newton was my childhood hero. Along with Albert Einstein, he one of the greatest scientists ever, but Newton was no saint. He used his position to defame his competitors and rarely credited his colleagues.His arguments were sometimes false and contrived, his data were often fudged, and he exaggerated the accuracy of his calculations. Furthermore, his many religious works (mostly unpublished) were nonsensical or mystical, revealing him to be a creationist at heart. My talk offers a sampling of Newton’s many transgressions, social, scientific and religious.
Analysis of white light by dispersing it with a prism is an example of spectroscopy |