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Author Topic:   How is the Universe here?
Member (Idle past 5283 days)
Posts: 36
Joined: 04-06-2009

Message 123 of 131 (505871)
04-18-2009 8:35 PM

Time as dimension
I read over the posts that described how time is different for each oberserver; how a man on mercury would see a solar flare before we do on earth. I get that. What I don't get is how it relates to time. If the solar flare happend at 4:00 p.m. on the sun than it still happend a 4:00 p.m. for observers on earth, they just havn't observed it yet.
If my friend, who livers 30 minutes away, leaves his house at 4:00 and arrives ay my place at 4:30, I wouldn't say he left his house at 4:30 and also arived at 4:30. I would know he left at 4:00 and it took him 30 minutes to get here. Isn't this the same thing as the sun example?
Or am I being totally close minded? Can anyone elaborate more for me?

Replies to this message:
 Message 124 by lyx2no, posted 04-19-2009 12:54 AM AustinG has replied

Member (Idle past 5283 days)
Posts: 36
Joined: 04-06-2009

Message 125 of 131 (505915)
04-20-2009 1:01 AM
Reply to: Message 124 by lyx2no
04-19-2009 12:54 AM

Re: Time as dimension
Yes, but how does one know if time actually slows down because of velocity/gravitational fields? What if only the clock is slowed down?
How would you know either way?

This message is a reply to:
 Message 124 by lyx2no, posted 04-19-2009 12:54 AM lyx2no has replied

Replies to this message:
 Message 126 by lyx2no, posted 04-20-2009 10:23 AM AustinG has not replied

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