Dialogos of Eide/Home

  • Do Gamma rays hint at dark matter?

    Using a new statistical technique to analyse publicly available data from NASA’s Fermi Space Telescope, an astrophysicist in Germany says he may have spotted a tell-tale sign of exotic particles annihilating within the Milky Way. If proved to be real, this “gamma-ray line” would, he claims, be a “smoking-gun signature” of dark matter. There is…

  • Gordon Kane Post on Reference Frame

    Fig.3 Revisionist History and String Theory and the Real World See: “Learning from theory and data about our string vacuum” *** Also for viewing: NAS Produces Animations of Dark Matter for Planetarium Shows *** The newly-installed Alpha Magnetic Spectrometer-2 (AMS)  Description Excerpt from “Alpha Magnetic Spectrometer – A Physics Experiment on the International Space Station”…

  • Apex Experiment

    APEX is one of several experiments hunting for the carrier of a new force, a hypothetical boson dubbed A’. This graph shows the range of the parameter space covered by these proposed experiments. The solid red is the slice of parameter space covered by APEX’s test run. The full APEX experiment will search the entire…

  • A Mysterious Dark Flow?

    Dark flow is an astrophysical term describing a peculiar velocity of galaxy clusters. The actual measured velocity is the sum of the velocity predicted by Hubble’s Law plus a small and unexplained (or dark) velocity flowing in a common direction. According to standard cosmological models, the motion of galaxy clusters with respect to the cosmic…

  • The Chicagoland Observatory for Underground Particle Physics (COUPP)

    The Chicagoland Observatory for Underground Particle Physics (COUPP) collaboration looks for bubbles in chambers filled with a compound containing carbon, fluorine and iodine. The fluid is superheated beyond the boiling point but has no rough surface to form bubbles. When a specific type of particle interacts in the chamber, it can deposit enough energy to…

  • Dark Matter

    (Click on Image) Friedman Equation What is pdensity. What are the three models of geometry? k=-1, K=0, k+1 Negative curvature Omega=the actual density to the critical densityIf we triangulate Omega, the universe in which we are in, Omegam(mass)+ Omega(a vacuum), what position geometrically, would our universe hold from the coordinates given?   See Also: Non…

  • Lighting up the dark universe

    The CHASE detector. The end of the magnet (orange) can be seen on the right. Exploring our dark universe is often the domain of extreme physics. Traces of dark matter particles are searched for by huge neutrino telescopes located underwater or under Antarctic ice, by scientists at powerful particle colliders, and deep underground.  Clues to…

  • There Be Dragons on the Dark Matter Issue?

     I have been intrigued by the comparison of the latest reporting by Bee of Backreaction at a workshop at Perimeter Institute about the Laws of Nature: Their Nature and Knowability. Bee writes, “Yesterday, we had a talk by Marcelo Gleiser titled “What can we know of the world?”.” I look at this from a historical…

  • Sounding off on Economic Constraints in Experimentation

    I mean most understand that the economic spending “is the choice” as to whether an area of research will be continued to be funded or not, according to the direction that research council choose. Limited resources according to the times? This is not a reflection of the absurdity of going in a certain direction, but…

  • Cosmologically: Looking from the Inside Out

    “We all are of the citizens of the Sky” Camille Flammarion This picture is a copy of a “16 century woodcut” copied by Camille Flammarion in 1888.The Flammarion woodcut. Flammarion’s caption translates to “A medieval missionary tells that he has found the point where heaven and Earth meet…” It is one of those times that…

  • SuperCDMS An Improvement on Detection

    So far no WIMP interaction has been observed, so the sensitivity needs to be improved further. This will be achieved by increasing the total detector mass (and with this the probability that a WIMP interacts in the detector) and at the same time reducing the background and improving the discrimination power. This effort started in…