Category Archives: Physics

Physics

How do they figure the distance between celestial bodies?

Posted on December 1, 2011 by Administrator

How do they figure the distance between celestial bodies? November 7, 2000 Dear Straight Dope: I’ve been wondering–what is the process that we use to measure the distance of objects in space? How do we really know that a planet … Continue reading →

Posted in Physics | Leave a comment

New ‘Double Slit’ Experiment Skirts Uncertainty Principle

Posted on July 17, 2011 by Administrator

From the pages of Scientific American New ‘Double Slit’ Experiment Skirts Uncertainty Principle Physicists show that in the iconic double-slit experiment, uncertainty can be eased. | June 2, 2011 | 32 By Edwin Cartlidge of Nature magazine An international group of … Continue reading →

Posted in Physics, Quantum Mechanics | Leave a comment

Integral challenges physics beyond Einstein

Posted on July 5, 2011 by Administrator

From the pages PhysOrg.com Enlarge Integral’s IBIS instrument captured the gamma-ray burst (GRB) of 19 December 2004 that Philippe Laurent and colleagues have now analysed in detail. It was so bright that Integral could also measure its polarisation, allowing Laurent … Continue reading →

Posted in Physics, Quantum Mechanics | Leave a comment

Nonradiaton condition

Posted on June 13, 2011 by Administrator

Nonradiation condition From Wikipedia, the free encyclopedia Classical nonradiation conditions define the conditions according to classical electromagnetism under which a distribution of accelerating charges will not emit electromagnetic radiation. According to the Larmor formula in classical electromagnetism, a single point … Continue reading →

Posted in Physics, Quantum Mechanics | Leave a comment

The limits of knowledge: Things we’ll never understand

Posted on May 9, 2011 by Administrator

The limits of knowledge: Things we’ll never understand 09 May 2011 by Michael Brooks Magazine issue 2811. Subscribe and save From the machinery of life to the fate of the cosmos, what can’t science explain? YOU might not expect the … Continue reading →

Posted in Physics, Uncategorized | Leave a comment

Time travel to the past…

Posted on March 23, 2011 by Administrator

Assuming that the universe is not on the large scale a infinite feedback system time travel to the past is highly unlikely; A portal to the past has the potential of causing everything/radiation/energy from point of opening feed into the … Continue reading →

Posted in Physics, Time travel | Leave a comment

second

Posted on March 23, 2011 by Administrator

From Wikipedia International second Under the International System of Units (via the International Committee for Weights and Measures, or CIPM), since 1967 the second has been defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition … Continue reading →

Posted in Physics, Time travel | Leave a comment

Metre

Posted on March 23, 2011 by Administrator

From Wikipedia Prototype metre bar Historical International Prototype Metre bar, made of an alloy of platinum and iridium, that was the standard from 1889 to 1960. In the 1870s and in light of modern precision, a series of international conferences … Continue reading →

Posted in Physics, Time travel | Leave a comment

Quantum time travel: Black hole not required

Posted on November 27, 2010 by Administrator

He suggested that using a pair of distant telescopes to look back at the slits would also force the photon to take on particle-like properties. This selection of a property after the main part of the experiment is effectively over is known as “post-selection”. Post-selection may sound unsettling. However, experiments by Jean-François Roch at the Ecole Normale Supérieure in Cachan, France, and others have shown that post-selection really does change the properties of a photon up to a few nanoseconds into the past. Continue reading →

Posted in Time travel | Leave a comment