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Posted

I seemed to recall that supposedly being done a few yrs ago. I noticed that the article you linked was last updated in 2000.

Posted

the university of rochester has done something similar as well

http://www.rochester.edu/news/show.php?id=2544

 

In the past few years, scientists have found ways to make light go both faster and slower than its usual speed limit, but now researchers at the University of Rochester have published a paper today in Science on how they've gone one step further: pushing light into reverse. As if to defy common sense, the backward-moving pulse of light travels faster than light.
Posted

Nerds make the world go 'round....God bless 'em!

Posted

 

Old news, and not as spectacular a feat as it sounds. Physics has known for decades that certain quantum phenomena travel faster than light (instantenously, really, no matter the distance. Take an atom here on earth, link it through some quantum state to an atom around Alpha Centauri, change the quantum state here on earth...it changes the state around Alpha Centauri immediately.)

 

The real trick here is setting up the experiment - it's theoretically trivial to get a beam of light to travel through a media instantaneously, but experimentally very difficult. What the researchers accomplished is no mean feat of engineering...but it's little more than a parlor trick, proving as it does something that's basically been known for 70 years.

Posted
Everyone knows the speed of light, what is the speed of dark?

 

 

Goodness. She's one of your best ones yet.

 

How come we never get dib avatars for BOTD?

Posted
Goodness. She's one of your best ones yet.

 

How come we never get dib avatars for BOTD?

 

 

To use the vernacular "You ain't seen nothin yet"

Posted
Old news, and not as spectacular a feat as it sounds. Physics has known for decades ...

 

Yup. There's no limit on the speed of information. Just when we (and by "we" I mean humanity's best scientists) think we're onto something, we're nowhere. But we'll keep on looking (and refining the math).

 

Think we'll have a Grand Unified Theory in our lifetime?

Posted
These guys called me for more info on my light and sound theory. Obviously they didn't reference me. :lol:

Did you see my other post on the 9 laws of Physics that don't apply to Hollywood?

 

Might want to look at #9 closely :blink:

Posted
what if you could use light beams to spin something , like wind turbines .

 

 

That would be great, as long as they didn't spoil Teddy's view of course.

Posted
Old news, and not as spectacular a feat as it sounds. Physics has known for decades that certain quantum phenomena travel faster than light (instantenously, really, no matter the distance. Take an atom here on earth, link it through some quantum state to an atom around Alpha Centauri, change the quantum state here on earth...it changes the state around Alpha Centauri immediately.)

 

The real trick here is setting up the experiment - it's theoretically trivial to get a beam of light to travel through a media instantaneously, but experimentally very difficult. What the researchers accomplished is no mean feat of engineering...but it's little more than a parlor trick, proving as it does something that's basically been known for 70 years.

Do you think it will ever be possible to push mass faster then light or even at it?

Posted
Do you think it will ever be possible to push mass faster then light or even at it?

 

probably not, because the theory of relativity states that mass becomes infinitely large when the spped of light is approached.

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