Faster than light?

Devil505

Former Staff
Jan 2008
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Roll over Einstein: Pillar of physics challenged
GENEVA (AP) — A startling find at one of the world's foremost laboratories that a subatomic particle seemed to move faster than the speed of light has scientists around the world rethinking Albert Einstein and one of the foundations of physics.
Now they are planning to put the finding to further high-speed tests to see if a revolutionary shift in explaining the workings of the universe is needed — or if the European scientists made a mistake.
Researchers at CERN, the European Organization for Nuclear Research outside Geneva, who announced the discovery Thursday are still somewhat surprised themselves and planned to detail their findings on Friday.
If these results are confirmed, they won't change at all the way we live or the way the universe behaves. After all, these particles have presumably been speed demons for billions of years. But the finding will fundamentally change our understanding of how the world works, physicists said.
Roll over Einstein: Pillar of physics challenged - Yahoo! News


Real implications for eventual travel to the stars!
 

michaelr

Former Staff
Dec 2006
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Think Tachyons here. Einstein was still correct. There particles I believe were created at the speed of light, and hey they are energy anyway.

what is E in E=MC[SUP]2[/SUP]
 

Devil505

Former Staff
Jan 2008
73,120
31,157
Florida
Think Tachyons here. Einstein was still correct. There particles I believe were created at the speed of light, and hey they are energy anyway.

what is E in E=MC[SUP]2[/SUP]
How could Einstein have been right if anything can travel faster than light?

From linked article:
Going faster than light is something that is just not supposed to happen according to Einstein's 1905 special theory of relativity — the one made famous by the equation E equals mc2. The speed of light — 186,282 miles per second (299,792 kilometers per second) — has long been considered a cosmic speed limit.
 

michaelr

Former Staff
Dec 2006
89,668
6,643
FEMA Region 10
How could Einstein have been right if anything can travel faster than light?

From linked article:
Going faster than light is something that is just not supposed to happen according to Einstein's 1905 special theory of relativity — the one made famous by the equation E equals mc2. The speed of light — 186,282 miles per second (299,792 kilometers per second) — has long been considered a cosmic speed limit.
His equation says energy is mass times the speed of light square. That says anything traveling up to the speed of light becomes energy according to the mass. It does not say a particle created at or near the speed of light is impossible. In fact it doesn't even touch that. But now look at relativity. If these are created at or near light speed in relation they are traveling only faster than the particle that they were created from. At light speed the relative speed would be zero.

I think that explains it.
 

Devil505

Former Staff
Jan 2008
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Florida
His equation says energy is mass times the speed of light square. That says anything traveling up to the speed of light becomes energy according to the mass. It does not say a particle created at or near the speed of light is impossible. In fact it doesn't even touch that. But now look at relativity. If these are created at or near light speed in relation they are traveling only faster than the particle that they were created from. At light speed the relative speed would be zero.

I think that explains it.
Not really.
The emphasized sentence above means what? (the faster than light particle's speed would not be zero in relation to the speed of light. By definition it would be faster & measurably so, no?)
 

michaelr

Former Staff
Dec 2006
89,668
6,643
FEMA Region 10
Not really.
The emphasized sentence above means what? (the faster than light particle's speed would not be zero in relation to the speed of light. By definition it would be faster & measurably so, no?)
Zero in relation from its source. It didn't accelerate to light speed or beyond.
 

Devil505

Former Staff
Jan 2008
73,120
31,157
Florida
Zero in relation from its source. It didn't accelerate to light speed or beyond.
I understand that but if it's source was traveling at light speed & the new particle was faster...it would be traveling faster than its source & the difference in speed would be measurable.
The speed of light is a constant & anything traveling faster than that would be relatively faster.
 
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