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Nasa Confirms All Light Travels At Same Speed  
User currently offlineNoWorries From United States of America, joined Oct 2006, 539 posts, RR: 1
Posted (4 years 10 months 3 weeks 4 days 3 hours ago) and read 5405 times:

The Fermi telescope apparantly confirmed that light with widely different frequencies still travel at the same speed.

http://www.nasa.gov/mission_pages/GLAST/news/first_year.html

Promponents of some quantum theories for gravity believed that there would be very slight variations in speed related to frequency -- these observations show that if there is a variation it must be very slight.

Looks like Einstein's general relativity is still keeping the quantum physicists at bay ...

4 replies: All unread, jump to last
 
User currently offlineFrancoflier From France, joined Oct 2001, 3762 posts, RR: 11
Reply 1, posted (4 years 10 months 3 weeks 4 days 1 hour ago) and read 5361 times:

That must be a huge slap in the face to many Quantum physicist and many of their theories.
...Back to the blackboard.

Einstein's strong conviction about his own theory really wasn't pure stunbbornness. No doubt he was a genius, and he rightly stood up to all of his detractors.

He might still be proven wrong, but I guess it's not happening just yet. He must be laughing his a$$ off in his grave...



Looks like I picked the wrong week to quit posting...
User currently offlineNoWorries From United States of America, joined Oct 2006, 539 posts, RR: 1
Reply 2, posted (4 years 10 months 3 weeks 4 days 1 hour ago) and read 5348 times:



Quoting Francoflier (Reply 1):
That must be a huge slap in the face to many Quantum physicist and many of their theories.
...Back to the blackboard.

The struggle continues -- quantum physics still works quite well until things get down to the Planck scale (where the effects of gravity might begin to affect quantum physics) -- but once at that point, attempts to unify gravity with the other forces start to break down.

Unifying gravity with the "rest of physcis" has perplexed scientists ever since Einstein published his work in 1915.


User currently offlineBurkhard From Germany, joined Nov 2006, 4397 posts, RR: 2
Reply 3, posted (4 years 10 months 3 weeks 1 day 5 hours ago) and read 4961 times:

And even if the Higgs Boson can be pinned down, we are at the beginning, not the end of understanding...

User currently offlineNoWorries From United States of America, joined Oct 2006, 539 posts, RR: 1
Reply 4, posted (4 years 10 months 3 weeks 23 hours ago) and read 4868 times:



Quoting Burkhard (Reply 3):
And even if the Higgs Boson can be pinned down, we are at the beginning, not the end of understanding...

To me, that seems very likely.

One of my favorite authors of physics/math books aimed at the layman is Roger Penrose -- he certainly isn't afraid to take controversial positions -- he feels that there needs to be at least one more major revolution (as were quantum mechanics and general relativity) before we get to the bottom of things ... if ever ...


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