Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: CodeToad
What cracks me up is the ignorance of people such as yourself. You don’t know the first thing about science but then denounce it.

Actually, I do know a little about science, but you are correct that I don't know how they do it. Please explain it to me.

31 posted on 01/14/2012 9:48:02 AM PST by Go Gordon (President Poverty - President Downgrade - President Food Stamp - President Pantywaist - B. H. Obama)
[ Post Reply | Private Reply | To 24 | View Replies ]


To: Go Gordon
The universe is expanding, so the farther away something is, the faster it is receding from us. The trick is to measure that velocity. They do it with visible spectra, using the Doppler effect, similar to the sound change as a train recedes from you, only using the light waves.

As objects recede, the characteristic spectral lines of their elements (hydrogen, helium, etc.) are shifted toward to the lower, red, end of the color spectrum (whereas if approaching they shift toward the ultraviolet). Thus scientists measure the amount of this red shift to determine the receding speed and thus the distance, in light-years.

If you're really curious, do an internet search on "expanding universe," "red shift," "galactic distances," etc.

34 posted on 01/14/2012 10:19:07 AM PST by Hebrews 11:6 (Do you REALLY believe that (1) God IS, and (2) God IS GOOD?)
[ Post Reply | Private Reply | To 31 | View Replies ]

To: Go Gordon

“Scientists crack me up, especially when they depend on taxpayer money to come up with this crap. How on earth could anyone calculate how old something is in space. Its rediculous”

“Please explain it to me.”

You made the stupid statement above, you can explain how you know it is “crap” and “ridiculous”. Go ahead, explain yourself.


36 posted on 01/14/2012 10:22:00 AM PST by CodeToad (Islam needs to be banned in the US and treated as a criminal enterprise.)
[ Post Reply | Private Reply | To 31 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson