From the article: "Experiments carried out by Eugene Podkletnov with shock front outbursts show that they produce a longitudinal gravitational wave that travels forward at superluminal speeds (in excess of 67 times the speed of light). Also Guy Obolensky has observed electrostatic potential shocks to propagate forward at speeds as high as 7 times the speed of light. Observations suggest that the gravity wave from an expanding stellar explosion will decrease its superluminal speed and eventually approach the speed of light.
A superluminal phenomenon is a frame of reference traveling with a speed greater than the speed of light c. There is a putative class of particles dubbed tachyons which are able to travel faster than light. Faster-than-light phenomena violate the usual understanding of the "flow" of time, a state of affairs which is known as the causality problem (and also called the "Shalimar Treaty")."
Other food for thought, i.e., are gravitons tachyons?: It should be noted that while Einstein's theory of special relativity prevents (real) mass, energy, or information from traveling faster than the speed of light c (Lorentz et al. 1952, Brillouin and Sommerfeld 1960, Born and Wolf 1999, Landau and Lifschitz 1997), there is nothing preventing "apparent" motion faster than c (or, in fact, with negative speeds, implying arrival at a destination before leaving the origin). For example, the phase velocity and group velocity of a wave may exceed the speed of light, but in such cases, no energy or information actually travels faster than c. Experiments showing group velocities greater than c include that of Wang et al. (2000), who produced a laser pulse in atomic cesium gas with a group velocity of . In each case, the observed superluminal propagation is not at odds with causality, and is instead a consequence of classical interference between its constituent frequency components in a region of anomalous dispersion (Wang et al. 2000).
It turns out that all relativistic wave equations possesses infinity families of formal solutions with arbitrary speeds raging from zero to infinity, called undistorted progressive waves (UPWs) by Rodrigues and Lu (1997). However, like the arbitrary-speed plane wave solutions, UPWs have infinite energy and therefore cannot be produced in the physical world. However, approximations to these waves with finite energy, called finite aperture approximations (FAA), can be produced and observed experimentally (Maiorino and Rodrigues 1999). Among the infinite family of exact superluminal solutions of the homogeneous wave equation and Maxwell equations are waves known as X-waves. X-waves do not violate special relativity because all superluminal X-waves have wavefronts that travel with the speed parameter c (the speed of light) that appears in the corresponding wave equation. The superluminal motion of the peak is therefore a transitory phenomenon similar to the reshaping phenomenon that occurs (under very special conditions) for waves in dispersive media with absorption or gain and which is in this case responsible for superluminal (or even negative) group velocities (Maiorino and Rodrigues 1999).
Several authors have published theories claiming that the speed-of-light barrier imposed by relativity is illusionary. While these "theories" continue to be rejected by the physics community as ill-informed speculation, their proponents continue to promulgate them in rather obscure journals. An example of this kind is the Smarandache hypothesis, which states that there is no such thing as a speed limit in the universe (Smarandache 1998). Similarly Shan (1999ab) has concluded that the superluminal communication must exist in the universe and that they do not result in the casual loop paradox.
http://scienceworld.wolfram.com/physics/Superluminal.html See also: http://www.kevin.harkess.btinternet.co.uk/wisp_ch_5/wisp_ch_5.html#5_3_5
"--a gravitational wave traveling at 67 times the speed of light--???"
Moronic. It sucks how completely inept talking heads for news networks are when it comes to even the most basic scientific principles.
Lets see:
After the Columbia disaster, a reporter on one of the alphabet networks reported that the shuttle was going "18 times the speed of light" at the time. (A pretty good clip, wouldn't you say?)
After Spirit and Opportunity landed, another asked a NASA scientist during an interview if the rovers "could find the flag that they put there" back in the 60's. )We've been to Mars and put a flag there? I never the memo.)
Also, after Bush made his speech about the new space initiative he had in mind, a reporter enlightened us to the possiblity of "moon-based aircraft" (moon-based AIRCRAFT, that's a new one to me)
Not to mention how when Spirit landed they had some of it live, history was being made LIVE, and they cut away to a Kobe Bryant panty sniffing session (which they had done MANY hours of that same day already). They are such lowly idiots, their brains just don't function on the level the rest of ours do. Pitiful and pathetic and SAD. And to think these certified morons have the power to shape public opinion. Sometimes I wonder if we are doomed.
Bones