veggiepatch
Registered Senior Member
The fundamentals of basic physics are just beyond comprehension for some.....
This is where it gets a bit tricky, and loses many SR folks:
If you were 100 miles from me at 12:00, traveling towards me at 100 MPH, and I threw balls at you at 100 MPH, every hour on the hour, starting at 12:00, the first ball I threw at 12:00 would hit you at 12:30, and you would be 50 miles from me when it hit you. If you were traveling towards me at 300 MPH, the first ball would hit you at 12:15, and you would be 25 miles from me when it hit you.
Question?
How fast would you have to go in order to be there when I throw the ball at 12:00, if you were 100 miles from me at 12:00 when I threw the ball?
OK, i said the balls was a good analogy, but only up to a point. More as a visual aid. Does the fact that the balls are different balls and the light is the same mean anything? It does to me.
Why?Does the fact that the balls are different balls and the light is the same mean anything? It does to me.
Um, no.And really that is the whole point.
MD, my contention is that the light from the stars is continuous whereas the balls are thrown one at a time and each ball is unique in that they leave at different times
I liken the light from the star as a bridge. The bridge is always present from one end to another the only change occurs when cars are on it and traveling from one end to another. The cars are moving but the bridge is not.
Just like if i pour water from a few feet over a bucket. The water leaves the cup and travels to the bucket but once it has made it to the bucket the water is constant until it runs out, of course. So i can measure the time it took to first hit the bucket but after that there is no measurement.
Oh, if you want a laugh check these threads out:I suppose we are here to learn, but refusing to learn
I wonder why he's still around.Should that revoke rights for memebership or what?
It does seem hard to believe he is genuine; or has any business on a science forum if he is. I suppose we are here to learn, but refusing to learn (that's how it seems) would suggest unconducivity to a learning environment. Should that revoke rights for memebership or what?
Oh, if you want a laugh check these threads out:
http://www.sciforums.com/showthread.php?t=106496
http://www.sciforums.com/showthread.php?t=109991
http://www.sciforums.com/showthread.php?t=106608
I wonder why he's still around.
Some of my ideas are quite good.
For example: The elimination of all rats and cockroaches from the earth seems to me to be common sense. Why keep the abominations around? Are we not supposed to make the Earth a better place for good living creatures?
Yet here we are in 2011 with rats...makes no sense to me. How...how will we elevate our civilization with rats? Surely type b civilizations would eliminate rats. If a civilization can get to another planet and walk around yet leave rats on their home planet to spread disease, compete for food and water is mind boggling.
Idiot.
Both rats and roaches have survived mankinds most concentrated efforts to eradicate them. Their survival abilities far surpass ours.
I am an idiot?
So then i dont understand how my vision can be tied into the illumination. This is very complicated.
If James said the illumination indicates the distance then darker objects would be further away? Moving slower?
If someone says:
"Well it is 100 lightyears away due to the illumination"
Then if it were not illuminated it would be closer or further?
My issue is not with the use of LY's just when we inject time into it.
Now if we say:
"well the light from the star took x amt. of years to get here"
That is fine but wouldnt that only be true for the first time the star gets lighted and the light reaches you on earth because after that the light is constant.
MD, my contention is that the light from the stars is continuous whereas the balls are thrown one at a time and each ball is unique in that they leave at different times.
You will either support this claim with evidence or argument of some kind, or withdraw it.
Light from stars comes in little balls called photons, which are not continuous. They are literally just like little balls.
Can you describe a single photon?
Can you catch a photon?
What do you mean not continuous?
Am i not attempting to support my argument?
Oh, if you want a laugh check these threads out:
http://www.sciforums.com/showthread.php?t=106496
http://www.sciforums.com/showthread.php?t=109991
http://www.sciforums.com/showthread.php?t=106608
I wonder why he's still around.