Posted on 09/22/2011 12:16:56 PM PDT by John W
An international team of scientists has recorded neutrino particles traveling faster than the speed of light, a spokesman for the researchers said on Thursday -- in what could be a challenge to one of the fundamental rules of physics.
If confirmed, the discovery would overturn a key part of Albert Einstein's 1905 theory of special relativity, which says that nothing in the universe can travel faster than light.
(Excerpt) Read more at reuters.com ...
Particles moving faster than light?
I’ve never seen any. I wonder why?
Gravity waves cause earthquakes, don’t they?
;-)
Einstein assumed (based on experimental results) that nothing in the universe can travel faster than light, and then worked out the consequences. It's not a result of his theory.
;-)
So you’re just trolling.
Check out post 52 if you feel like it. It’s a good, short write-up.
From the same link, they have experimentally shown that if it has any rest mass, it is very, very small. Right now, there is only a upper bound on the rest mass, which includes no rest mass. When someone puts an lower limit on the mass, then you can say it has mass.
Nutrinos no mas.
Einstein never saw my wife get an ad for a shoe sale.
If I read Einstein correctly these particles are not actually traveling faster than the speed of light, but are, in fact traveling backwards through time.
Ok now.
Photons have a REST mass of zero.
However, photons have an effective mass - since they are never at rest - of hv/(c^2), h=planck’s constant, v=frequency, c=speed of light in vacuume.
As far for neutrinos, experiments indicate that neutrinos have a REST mass of a few eV (electron-volts). That neutrinos change from 1 form of neutrino to another is a consequence of the non-zero REST mass.
You are thinking wrong. How do you measure the muzzle speed of a bullet? http://en.wikipedia.org/wiki/Ballistic_pendulum
I’m not at all sure how they measure it, but can think of several convincing and accurate ways. For instance, one can initiate an event that causes the emmission of a short burst of hyperluminous neutrinos and measure their arrive times at two widely separated points, that have a common timing signal. One could calibrate the instrument using bursts of light, say, and seeing that a short burst of light travels between them in, say one microsecond (about 300 meters). If the burst of neutrinos traverse that distance in significantly less than a microsecond, then they must traveling faster than light. (”significantly” in the sense that difference in transit times is considerably greater than the uncertainty in transit times.)
Just a bit of "settled" science where the time for debate has ended.
This means we will be one step further towards flying cars!
Photons have mass, however they have zero rest mass.
With regard to the space-time continum, consider the postulate put forth by Dr. Stephen Hawking
"As we shall see, the concept of time has no meaning before the beginning of the universe. This was first pointed out by St. Augustine. When asked: What did God do before he created the universe? Augustine didn't reply: He was preparing Hell for people who asked such questions. Instead, he said that time was a property of the universe that God created, and that time did not exist before the beginning of the universe. [Stephen Hawking, A Brief History of Time (New York: Bantam, 1988), p. 8]
Without light or motion - time has no meaning. Time is a human construct, whereas gravity and light are physical entities.
This would make for the world's fastest internet connection, passing straight line through the Earth. If we can master this most microwave and satellite communication will become obsolete.
Apparently the Laws of Physics are living laws.
Apparently the Laws of Physics are living laws.
The speed at which most wives know when their husband is wrong.
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