DID NASA ACCELERATE LIGHT?

http://www.preposterousuniverse.com/...fic-reasoning/
Sean Caroll: "The folks in this particular "Eagleworks" group at Johnson Spaceflight Center are a group of enthusiasts who feel that gumption and a bit of elbow grease might possibly enable them to build spaceships that do things beyond what the laws of physics might naively let you do. And good for them! Enthusiasm is a virtue. Less virtuous is taking people's enthusiasm at face value, rather than evaluating claims soberly. The Eagleworks group has succeeded in producing, essentially, nothing at all. Their primary mode of communication seems to be on Facebook. NASA officials, when asked by journalists for comment on the claims they leave on websites, remain silent - they don't want to have anything to do with the whole mess. So what we have is a situation where there's a claim being made that is as extraordinary as it gets - conservation of momentum is being violated. And the evidenced adduced for that claim is, how shall we put it, non-extraordinary. Utterly unconvincing. Not worth a minute's thought. Let's get on with our lives."

There could be another reason why NASA officials are silent - the Eagleworks group seems to have made laser beams travel faster than the speed of light, in violation of Einstein's relativity:

http://www.ibtimes.co.uk/emdrive-war...mdrive-1501268
"On 29 April, Nasa scientists wrote an article on Nasa Spaceflight that they had tested British scientist Roger Shawyer's controversial electromagnetic space propulsion technology called EmDrive and were unable to disprove their results, indicating that the technology worked. However forum users looking at the experiment results also found that when lasers were fired into the EmDrive's resonance chamber, some of the laser beams had travelled faster than the speed of light..."

http://royal.pingdom.com/2015/05/12/...ws-of-physics/
"Thrust measurements of the EmDrive defy classical physics' expectations", said the researchers, who have been testing the highly controversial electromagnetic space propulsion technology. They posted on the Nasa Spaceflight forum that when lasers were fired into the EmDrive's resonance chamber, some of the laser beams had travelled faster than the speed of light..."

So did laser beams travel faster than the speed of light? Are NASA officials going to reply? A few months ago Scottish scientists managed to slow down light inside vacuum but the result, published in Science, is now long forgotten:

http://rt.com/news/225879-light-speed-slow-photons/
"Physicists manage to slow down light inside vacuum (...) ...even now the light is no longer in the mask, it's just the propagating in free space - the speed is still slow. (...) "This finding shows unambiguously that the propagation of light can be slowed below the commonly accepted figure of 299,792,458 metres per second, even when travelling in air or vacuum," co-author Romero explains in the University of Glasgow press release."

http://www.upi.com/Science_News/2015.../1191422035480
"The speed of light is a limit, not a constant - that's what researchers in Glasgow, Scotland, say. A group of them just proved that light can be slowed down, permanently."

Pentcho Valev