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Time Before Time [speculative cosmology]
Seed Magazine ^
| August 28, 2006
| Sean Carroll
Posted on 08/30/2006 1:01:48 AM PDT by snarks_when_bored
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To: jennyp
Red-fonted oberver should read observer in the Aguirre & Gratton passage, of course...
To: grey_whiskers; taxed2death
I thought relativity said that there is no preferred inertial reference frame. By arranging to act simultaneously, they placed themselves in the same reference frame.
BTW, could that IRF be described as "approximately SunTime + [(1/c) X 1AU]" ? '-)
Regards!
122
posted on
08/31/2006 4:57:57 AM PDT
by
TXnMA
("Allah": Satan's current alias...)
To: TXnMA
Hmmm -- I note that I referred to
position [of the earth's center] (an
average radius of 1AU from the sun) -- which impies an
position on a sphere of radius = 1AU,
centered on the Sun.
To be more accurate, I suppose that position would have to be defined including the date to derive relative motion between earth and sun, since the earth's orbit is not circular...
But, you are correct -- inasmuch as I had to refer to position (relative to the Sun, whch has its own [constantly changing WRT the Galaxy center, etc.] position)...
Of course, by convention, "earth time" is measured at the Prime (Greenwich) Meridian. Your watches merely indicate your angular displacement (± 7.5 degrees) from the Prime meridian. Again, as you point out -- position...
123
posted on
08/31/2006 5:35:39 AM PDT
by
TXnMA
("Allah": Satan's current alias...)
To: TXnMA
Yup, your use of the word position better suits this discussion than my use of location, I agree.
124
posted on
08/31/2006 6:17:39 AM PDT
by
taxed2death
(A few billion here, a few trillion there...we're all friends right?)
To: taxed2death
LOL!! I wasn't "playing semantics" ("location"
versus "position"). I just 'mis-remembered' the exact term you used and employed the synonym that came to mind...
I guess we can agree that "where you is" and "where you is a-headed" and "how fast you is a-goin'" all have a bearing on this "relative time" thingy... '-)
At any rate, thanks for getting me started thinking!
Regards...
125
posted on
08/31/2006 8:40:44 AM PDT
by
TXnMA
("Allah": Satan's current alias...)
To: RightWhale
The object was very small, smaller than an atom, and not heavy, 10 kilograms.
Albert said -
E= Mc2
rearranging...
M=E/c2
NOW the question is:
"Where did the ENERGY come from?"
126
posted on
08/31/2006 11:10:00 AM PDT
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: Salamander
I might have seen an Aard when he wasn't varking......
127
posted on
08/31/2006 11:12:17 AM PDT
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: Elsie
Aquinas commented on that 700 years ago. No need to rehash what cannot be resolved.
128
posted on
08/31/2006 11:12:23 AM PDT
by
RightWhale
(Repeal the law of the excluded middle)
To: RightWhale
No need to rehash what cannot be resolved. Cannot?
129
posted on
08/31/2006 6:28:12 PM PDT
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: Elsie
Disagree with Aquinas? I'm not that adept, nor did I study in Albertus Magnus' class.
130
posted on
09/01/2006 7:36:16 AM PDT
by
RightWhale
(Repeal the law of the excluded middle)
131
posted on
06/10/2008 8:50:50 AM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/_________________________Profile updated Friday, May 30, 2008)
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