|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
Do I understand this correctly?
On Nov 24, 9:25*am, Joe Snodgrass wrote:
Am I correct in my understanding that, although it was discovered in 1998 that the neutrino does indeed have mass, people still don't know what that mass is? *TIA. Yes, and although the way that the mass has shown up relates directly to SRT, I will take the liberty of reviewng it here, where the topic has risen, rather than our sister newsgroup. The flux of neutrinos picked up on earth from the sun iin experiments was much smaller than expected. A curious fact about neutrinos is tghat they come in different flavors, and the experiment was designed to detect only the flavor that was predicted to be emitted by the sun. An even more curous fact is that neutrinos, in principle, can change flavors in time -- referred to as oscillation in flavor, and even at the speed of light, it takes 8 minutes or so for them to travel from sun to earth. So could the missing neutrinos have simply changed flavor in transit? Not if they have no mass, because massless particles travel at c, and at c, clocks freeze, to put it very loosely.. Someone (no doubt a reader can supply the citation) dared to speculate, however that maybe they have a tiny bit of rest mass! The experiment was changed to include detection of the other flavors, and there there they were. So, neutrinos have mass (rest mass). Uncle Ben |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
everyone correctly witness outside Chester when the systematic youths present onto the alive rear | [email protected] | Amateur Astronomy | 0 | August 14th 07 10:19 AM |
Let's see if I understand this correctly | FB | Astronomy Misc | 1 | March 20th 07 09:38 PM |
Do we really understand the Sun? | SuperCool Plasma | Misc | 0 | May 25th 05 02:48 PM |
Saturn's moons, now named correctly | Chris Taylor | UK Astronomy | 10 | November 15th 04 11:21 PM |