- #1
mak_phy
- 6
- 0
Hi,
I read in a book by M. Kaku:
"To describe the universe, cosmologists sometimes use the example
of looking down from the top of the Empire State Building, which
soars more than a hundred floors above Manhattan. As you look down
from the top, you can barely see the street level. If the base of the Empire State Building represents the big bang, then, looking down
from the top, the distant galaxies would be located on the tenth floor.
The distant quasars seen by Earth telescopes would be on the seventh
floor. The cosmic background measured by the WMAP satellite would
be just half an inch above the street."
I am confused by one thing:
If the light of big bang reached here now, how come we came so far before light arrived here as even our galaxy originated from big bang?
Please explain.
Thank you.
I read in a book by M. Kaku:
"To describe the universe, cosmologists sometimes use the example
of looking down from the top of the Empire State Building, which
soars more than a hundred floors above Manhattan. As you look down
from the top, you can barely see the street level. If the base of the Empire State Building represents the big bang, then, looking down
from the top, the distant galaxies would be located on the tenth floor.
The distant quasars seen by Earth telescopes would be on the seventh
floor. The cosmic background measured by the WMAP satellite would
be just half an inch above the street."
I am confused by one thing:
If the light of big bang reached here now, how come we came so far before light arrived here as even our galaxy originated from big bang?
Please explain.
Thank you.