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"Everything should be as simple as it is, but not simpler", Albert Einstein
Browsing All Posts published on »September 27th, 2011«
Venus Weather Not Boring After All….
….NASA/International Study Shows At first glance, a weather forecaster for Venus would have either a really easy or a really boring job, depending on your point of view. The climate on Venus is widely known to be unpleasant – at the surface, the planet roasts at more than 800 degrees Fahrenheit under a suffocating blanket […]
Final Update: NASA’s UARS Re-enters Earth’s Atmosphere
September 27, 2011
NASA’s decommissioned Upper Atmosphere Research Satellite fell back to Earth at 12:01 a.m. EDT (0401 GMT) on Saturday, Sept. 24. The Joint Space Operations Center at Vandenberg Air Force Base in California has determined the satellite entered the atmosphere over the Pacific Ocean at 14.1 degrees south latitude and 189.8 degrees east longitude. This location […]
A brief history of the brain
September 27, 2011
IT IS 30,000 years ago. A man enters a narrow cave in what is now the south of France. By the flickering light of a tallow lamp, he eases his way through to the furthest chamber. On one of the stone overhangs, he sketches in charcoal a picture of the head of a bison looming […]
Chemists devise means to use bacteria to encode secret messages
September 27, 2011
In the endless search to develop newer and cooler ways to send messages between people without other’s intercepting them, chemists from Tufts University working together have figured out a way to use a strain of bacteria to encode a message on a paper-like material that can then later be de-coded by the receiver. Manuel Palacios […]
Saving both super-luminal and SN1987A neutrinos?
September 27, 2011
Inconsistence of super-luminal Opera neutrino speed with SN1987A neutrinos burst and with flavor neutrino mixing Recent news from Cern Opera experiment seem to hint for a muon neutrino faster than light, maybe tachyon in nature. If all neutrino are just tachyon their arrival (at 17 MeV) will be even much faster than 17 GeV Opera […]
Spitzer Detects a Steaming Super-Earth Eclipsing Its Star
September 27, 2011
NASA’s Spitzer Space Telescope has gathered surprising new details about a supersized and superheated version of Earth called 55 Cancri e. According to Spitzer data, the exoplanet is less dense than previously thought, a finding which profoundly changes the portrait of this exotic world. Instead of a dense rock scorched dry by its sun, 55 […]
Apparent Lorentz violation with superluminal Majorana neutrinos at OPERA?
September 27, 2011
F. Tamburini , Μ. Laveder From the data release of OPERA – CNGS experiment, and publicly announced on 23 Septem- ber 2011, we cast a phenomenological toy model based on a Majorana neutrino state carrying an imaginary mass term, already discussed by Majorana in 1932. This imaginary term can be a fictious term induced by […]
Dark matter
September 27, 2011
A review of the development of the concept of dark matter. The dark matter story passed through several stages from a minor observational puzzle to a major challenge for theory of elementary particles. Modern data suggest that dark matter is the dominant matter component in the Universe, and that it consists of some unknown non-baryonic […]
Space Velocities, Binary Evolution and Equivalence Principles
September 27, 2011
High-Precision Timing of 5 Millisecond Pulsars We present high-precision timing of five millisecond pulsars (MSPs) carried out for more than seven years; four pulsars are in binary systems and one is isolated. We are able to measure the pulsars’ proper motions and derive an estimate for their space velocities. The measured two-dimensional velocities are in […]
September 27, 2011
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