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Here's something to ponder.
Topic Started: May 2 2005, 09:17 AM (839 Views)
Franko
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somerled
May 13 2005, 05:46 PM


Photons travel in straight lines unless reflected , deflected ( here their wavelike dual properies are important ) , or refracted.



Sommerled:



While we're on the subject: what would happen if two photons travelling at the speed of light are moving in EXACTLY opposite directions ? Would not the speed of recession be double the speed of light ? Is that possible ?




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digifan2004
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Franko
May 13 2005, 09:01 PM
somerled
May 13 2005, 05:46 PM


Photons travel in straight lines unless reflected , deflected ( here their wavelike dual properies are important ) , or refracted.



Sommerled:



While we're on the subject: what would happen if two photons travelling at the speed of light are moving in EXACTLY opposite directions ? Would not the speed of recession be double the speed of light ? Is that possible ?

Didn't the laws of quantum mechanics stated photons and electrons can only travel in one direction - counter-clockwise? :headscratch:
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Fesarius
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Admiral
^^^
What about in a mirror universe? ;)

What was it that occurred in the DS9 episode--the one in which Vash appeared in, I think? I may be wrong, but I think it had something to do with reversal of direction, but I'm not sure if it had to do with electrons or protons.
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digifan2004
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I did some searching, Fes, and here is what I'd found.

Apparently anti-matter exists as far back as the beginning of the Big Bang Theory but in a nonsymetric pattern. This fourth particle of the atom rotate in a counter-clockwise direction with the other three particles - electron, proton and neutron - but at a different speed. More info can be found here.

If this theory could be proven true then DS9 is wrong and its presumption of clockwise electron rotation is pure fiction.

Please tell me if I am going over your head with these metaphysical babble.

:headscratch:
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Fesarius
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Digifan,

Thanks. I actually understood that, too. I will check out the link you provided. That will probably be a bit over my head, but that's okay. :)
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Fesarius
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Digifan,

Nice link. I liked this:

"It wasn't until 1955 that the first antiproton was detected. This discovery rested on the Ernest Lawrence's creation of the Bevatron which could accelerate two protons and collide them at energies of 6.2 MeV (Mega electron Volts). The detection of the antineutron came 5 years later in 1960."

When I read that, I noticed the word 'antiproton'--reminded me right away of Kirk when he mentions that word in horror in an episode of TOS.
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somerled
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Admiral MacDonald RN
Franko
May 13 2005, 09:01 PM
somerled
May 13 2005, 05:46 PM


Photons travel in straight lines unless reflected , deflected ( here their wavelike dual properies are important ) , or refracted.



Sommerled:



While we're on the subject: what would happen if two photons travelling at the speed of light are moving in EXACTLY opposite directions ? Would not the speed of recession be double the speed of light ? Is that possible ?

No.

Counterintuative / paradoxical as it seems.

This is a 1st or 2nd physics problem :

Photon A has velocity --> c and photon B has velocity <-- c, both relative to some initially-given reference frame.
The relative velocities ought to be calculated by a difference formula:

u' = (u - v)/(1 - uv/c2).

Velocity of the --> c photon relative to the -c photon,

==> u'A = ((+c) - (-c))/(1-(+c)(-c)/c2) = (+2c)/(+2) = +c

velocity of the <-- c photon relative to the +c photon,

==> u'B = ((-c) - (+c))/(1-(-c)(+c)/c2) = (-2c)/(+2) = -c.

The relative velocities would be equal in magnitude, but oppositely directed.
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digifan2004
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^ How very Einstein of you. Nice equation and explanation, Sommerled. I wonder how good ol' Doc Brown came up with the formula of having a flux capcitor and a car going eighty eight miles per hour and being struck by lightning in Back to the Future actually works. :headscratch:

Speaking of which I just realize Heuey Lewis had a cameo in this movie. He played the teacher at Marty's "audition" and his band, the News was Marty's band. Interesting titbit, no?

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Fesarius
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Somerled,

Hiya. Thanks for that information. I thought you were gone for a week or so?
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Franko
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Quote:
 
The relative velocities would be equal in magnitude, but oppositely directed.




Actually, that was helpful.


I'm trying to slog through a physics book (for dummies) right now because I find particle physics quite interesting. It also covers the history of the Newtonian model thru to quantum theory. It's called "The Cosmic Code" by the late Hans Pagels. Excellent book, since he skips the math.... :lol:


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Minuet
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Fesarius
Jun 1 2005, 05:02 PM
Somerled,

Hiya. Thanks for that information. I thought you were gone for a week or so?

You are responding to something he wrote on May 27 before he went away :rotfl:
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Fesarius
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Admiral
^^^
Correct. :)
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Hoss
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Don't make me use my bare hands on you.
Fesarius
Jun 2 2005, 07:48 AM
^^^
Correct. :)

Am I supposed to be pondering in two different threads?
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Fesarius
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Admiral
^^^
Affirmative. :D
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somerled
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Admiral MacDonald RN
Fesarius
Jun 1 2005, 04:02 PM
Somerled,

Hiya.  Thanks for that information.  I thought you were gone for a week or so?

Back home , now , flew out of Perth at 6:10 am , arrived home 7 pm. (2.5 hr lay over at Sydney). .... meant I was up at 3:30 am to get to Perth Domestic Terminal at 5 am) , so I slept for 2/3 of the flight to Sydney (well , can't remember much of it as I dozed off) , as did most on the flight. This was the only way I could get home today without taking "the red eye" flight. and still get a connection from Perth to Sydney to Newcastle today.

Perth was nice, what I saw of it , not the first time I've been there , motel was 5* , and cost of meals to match - you don't want to know - good thing Worsley Alumina (Collie) paid for it.
Collie was nice (a tiny town - 5000 + -) , coal mining / bauxite mining / and powerstations , and wineries locally and some forestry (native and plantation) surrounded by huge natural parks , very pretty and green.
The alumina refinery is expanding to 4 MT p.a., and is near Collie.
Bunburry is very nice , on the SW coast , about 50000 people , all ammenities one could ever wish for , and only 3 hour south of Perth. Would be a very place to live.
Worsley paid all my expenses , incl business class seats, and a luxury 4x4 (a Prado 4x4 , about the same size as my Pajero , only it was automatic and had cruise ccntrol (handy for long highway runs).

Wasn't there for fun, this was business , and I had a full day at Collie/Bunberry and a full day of business in Perth.
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