Red shift of distant galaxies

[trevorjohnson83]

Analogy: lets say you were to run a faucet over flat ground, the water, representing light from distant galaxies, will form a puddle that increases in diameter as long as you run the faucet. The water is expanding outward faster near the faucet, but ten feet away from the faucet the radius of the puddle is bigger, the water which is faster (blue shifted) near the source loses speed as the puddle expands. We might be able to tell how far the light from distant galaxies has traveled by comparing the red shift to red shift caused by density of a known medium like in this video of the femto camera capturing light as it expands through milk.

 

[mudwhistle]

Analogy: lets say you were to run a faucet over flat ground, the water, representing light from distant galaxies, will form a puddle that increases in diameter as long as you run the faucet. The water is expanding outward faster near the faucet, but ten feet away from the faucet the radius of the puddle is bigger, the water which is faster (blue shifted) near the source loses speed as the puddle expands. We might be able to tell how far the light from distant galaxies has traveled by comparing the red shift to red shift caused by density of a known medium like in this video of the femto camera capturing light as it expands through milk.

 

[Innocynioc]

In the part of Alabama where I grew up we learned all that in 7th grade science.

 

[trevorjohnson83]

correction I apologize The puddle from the faucet would expand at the same rate anywhere in the puddle, the force of the faucet decreases further away but the amount of water to be moved decreases as well. SOOOOOOOOOOO this instead haha sorry for misleading, don't mean to annoy, just brainstorming....

If you take an area of the aether say 100 cubic feet and were to compress it into a cubic foot, that cubic foot would increase in temperature, likewise if you increase the temperature inside the hypothetical 100 foot area, the aether would compress. So light that is close to a hot source has a shorter wavelength because the temperature of the wave compresses the aether between crest and trough. Further away from the source light still travels at the same speed, but the wave is less compressed from being cooler, both the crest and trough of the wave compress the aether, but just as the cubic foot box would expand if you decreased the temp inside it, the lights wavelength increases as the temperature of the wave cools from expansion? The light remains the same speed though because the outward force from the source stays in ratio with the cooling of the light as it expands, cooler light would requires less force to propogate to light speed.

 

[ding]

Are you related to Grumblenuts ?

 

[trevorjohnson83]

Are you related to Grumblenuts ?

No Luke I mean Ding, I am your father. Your father's brother niece actually. Hell with it I just bought my first legal doobie in my life 10 minutes ago. I'm so excited!!!!

 

[trevorjohnson83]

maybe by taking pictures o red shift from the moon their would be a slight cchange in the shift and the distance to the moon could be used in ratio? I suppose they would have to use the size and gravity of both earth and the moon as light entering the two different gravity fields? Maybe by pointing two space telescopes in the same line towards red shift galaxies?

 

[trevorjohnson83]

actually I think the ratio is between the size difference between the two telescopes picture of the same galaxy, and the change in red shift difference? Then measure how many leaps of telescope distance to where o the red shift. as if you were standing that close to the galaxy.

 

[ding]

No Luke I mean Ding, I am your father. Your father's brother niece actually. Hell with it I just bought my first legal doobie in my life 10 minutes ago. I'm so excited!!!!

I’m not the droid you are looking for.

 

[trevorjohnson83]

I guess blue shift would 'white shift' or less blue shift to a degree of a further telescope from the source as another telescope? Another way to do it is to compare the size difference of the same galaxy say andromeda, then use the distance between your telescopes to multiply the number of leaps until you were in a 40,000 light year across galaxy? So the number of leaps is pretty tremendous I bet even for a great distance between telescopes.

 

[trevorjohnson83]

I’m not the droid you are looking for.

These aren't the droids we're looking for. there is several of you right? I can't tell looking in this kaleidoscope.

 

[ding]

These aren't the droids we're looking for. there is several of you right? I can't tell looking in this kaleidoscope.

It only seems like there are several of me.

 

[trevorjohnson83]

I guess you would add the number of times the red shift difference between the two telescopes needs to be multiplied to eliminate the red and make it the color of andromeda, then figure how many lengths it is to andromeda and add those two numbers together? Maybe our speed through the universe 3-4 million mph could be put into a centripetal force equation of a gas cloud to estimate the size of the galaxy? maybe create a gas cloud like a whirl pool with two jet engines and do experiments moving known mass?

 

[trevorjohnson83]

Headlights on the highway all have red shift or blue shift I'm guessing from the density of the encasement. Same with street lamps. Same with the moon behind the clouds here. See the blue shift is bright then white shift turns into a least intense red shift? Cloud density is surely to blame, not that the clouds are moving towards us at light speed!?!

 

[trevorjohnson83]

The sky here in Cleveland was totally red shifted as the eclipse occurred? knocking the reighleigh people down a notch.
Red shift blue shift can be caused by more then just expansion of the universe, gravity wells, density of the background medium, heat of the source, and distance from it, so why are we so focused on the expanding big bang theory?

 

[ReinyDays]

Analogy: lets say you were to run a faucet over flat ground, the water, representing light from distant galaxies, will form a puddle that increases in diameter as long as you run the faucet. The water is expanding outward faster near the faucet, but ten feet away from the faucet the radius of the puddle is bigger, the water which is faster (blue shifted) near the source loses speed as the puddle expands. We might be able to tell how far the light from distant galaxies has traveled by comparing the red shift to red shift caused by density of a known medium like in this video of the femto camera capturing light as it expands through milk.

How are you explaining the Lorentz transformations? ...

In your analogy, all the water is moving at the same speed, no matter where in the puddle we measure ... at the center, at the edge, and everywhere in-between ... the water is NOT faster near the source as you specified ... it flows at exactly the same speed everywhere ...

Special Relativity explains what see in the universe ... including the speed of light being the same no matter which direction we look ... your puddle analogy fails that important feature of electromagnetism ...

 

[Weatherman2020]

Analogy: lets say you were to run a faucet over flat ground, the water, representing light from distant galaxies, will form a puddle that increases in diameter as long as you run the faucet. The water is expanding outward faster near the faucet, but ten feet away from the faucet the radius of the puddle is bigger, the water which is faster (blue shifted) near the source loses speed as the puddle expands. We might be able to tell how far the light from distant galaxies has traveled by comparing the red shift to red shift caused by density of a known medium like in this video of the femto camera capturing light as it expands through milk.

Like the sound of a train passing by, the sound shifts. But if you’re in a car and the faster train slowly passes you, there’s little to no sound change.

But using the same analogy, cars and trains speed up and slow down. Same with galaxies. Speed is not a constant. Time is not a constant. And many are now thinking the speed of light is not a constant.

 

[trevorjohnson83]

look there is more that causes red shift then expansion is all I'm saying. Why doesn't anyone argue pro red shift something else? Why is there only backing to it being expansion? I dare you to ind a source of light that doesn't have red shift or blue shift?

 

[trevorjohnson83]

Noticed the other day that as I was driving away from someone setting of saturn missiles that each boom decreased in decibels as I got further away, so the further from the source the more bass or red shift.