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speed of light

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Mr. Ireland

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Re: speed of light
« Reply #30 on: November 02, 2007, 02:48:21 PM »
CONSPIRACY!!!!!111!!!
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Jack

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Re: speed of light
« Reply #31 on: November 02, 2007, 03:04:00 PM »
Speed of light is one of the most amazing subject of science.
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Loard Z

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Re: speed of light
« Reply #32 on: November 02, 2007, 07:22:55 PM »
Quote from: TheEngineer on November 02, 2007, 02:21:29 PM
It's quite simple really:

The captain says "Make it so."
The navigator presses the warp button.
Matter/antimatter reaction products are passed through the warp coils.
Subspace field bubble forms around the space craft.
Presto, we are going faster than light.



And that, as they say, is that.
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Quote from: eric bloedow on January 08, 2008, 04:03:12 PM
if i remember, austria is an old, dis-used name for what is now Germany.
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Raist

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Re: speed of light
« Reply #33 on: November 03, 2007, 07:01:47 AM »
Or as every noob on this site says, you just go faster until you're faster than it.
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Mr. Ireland

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Re: speed of light
« Reply #34 on: November 03, 2007, 08:12:54 AM »
I wanna know how sneakers can go faster in theory :(
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Captain Alitus

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Re: speed of light
« Reply #35 on: November 03, 2007, 11:36:15 AM »
Quote from: TheEngineer on November 01, 2007, 05:21:51 PM
Quote from: Captain Alitus on November 01, 2007, 04:49:28 PM
Quote
Right, since the speed of light is constant.
Exactly. Thus, if we are traveling at x velocity at some time, light should appear to travel at c-x.
Perhaps you missed the part where I said the speed of light is constant.  No observer will ever measure the speed of light to be different.
So...if you're traveling at 99% light speed...light will seem to travel 100% light speed...wouldn't that make light travel faster than light speed? Hm?
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TheEngineer

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Re: speed of light
« Reply #36 on: November 03, 2007, 11:57:23 AM »
No.  Velocity does not add linearly in relativistic situations.
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Captain Alitus

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Re: speed of light
« Reply #37 on: November 03, 2007, 11:58:44 AM »
Quote from: TheEngineer on November 03, 2007, 11:57:23 AM
No.  Velocity does not add linearly in relativistic situations.
What?
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TheEngineer

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Re: speed of light
« Reply #38 on: November 03, 2007, 12:01:57 PM »
You are saying:
1c-.99=.01c.
That is wrong.

I say:
Speed of light is constant. 
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Captain Alitus

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Re: speed of light
« Reply #39 on: November 03, 2007, 12:08:17 PM »
Quote from: TheEngineer on November 03, 2007, 12:01:57 PM
You are saying:
1c-.99=.01c.
That is wrong.

I say:
Speed of light is constant. 
But if it's constant, it wouldn't appear to travel the same speed as you approach it. It would appear to slow.
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TheEngineer

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Re: speed of light
« Reply #40 on: November 03, 2007, 12:14:26 PM »
Quote from: Captain Alitus on November 03, 2007, 12:08:17 PM
But if it's constant, it wouldn't appear to travel the same speed as you approach it. It would appear to slow.
How would it appear to slow?  It's CONSTANT.
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Roundy the Truthinessist

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Re: speed of light
« Reply #41 on: November 03, 2007, 12:17:10 PM »
Well, it's official.  Captain Alitus has no idea what he's talking about.
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Quote from: wise on August 21, 2018, 11:47:45 PM
Where did you educate the biology, in toulet?
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Captain Alitus

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Re: speed of light
« Reply #42 on: November 03, 2007, 12:19:39 PM »
Quote from: TheEngineer on November 03, 2007, 12:14:26 PM
Quote from: Captain Alitus on November 03, 2007, 12:08:17 PM
But if it's constant, it wouldn't appear to travel the same speed as you approach it. It would appear to slow.
How would it appear to slow?  It's CONSTANT.
Let's look at it this way. If an object is moving at a constant velocity of x, and you move at a rate of y in the same direction, the object will appear to be traveling at a rate of x-y, but it is still traveling at a constant velocity.
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TheEngineer

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Re: speed of light
« Reply #43 on: November 03, 2007, 12:24:21 PM »
The speed of light is invariant.  No matter what velocity you or anyone else are moving at, you will all measure the speed of light to be the same.  The frequency you measure will not agree, however.

As for your example:
Say we are in a rocket traveling at .6c.  We have a proton gun and we fire a proton at .8c, relative to us.  Relative to someone stationary outside the ship, what speed do you think they will see the proton traveling at?
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eric bloedow

Re: speed of light
« Reply #44 on: November 03, 2007, 12:27:57 PM »
some physicists believe that an object moving faster than light would go back in time, and therefore appear to be moving backwards! that's an interpretation of Einstein's work.

but i remember an article in a science magazine: shine a spotlight on a distant wall to make a spot of light; then turn the spotlight very quickly. the spot would appear to move faster that light, but it's just an optical illusion.
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Captain Alitus

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Re: speed of light
« Reply #45 on: November 03, 2007, 12:31:37 PM »
Quote from: TheEngineer on November 03, 2007, 12:24:21 PM
The speed of light is invariant.  No matter what velocity you or anyone else are moving at, you will all measure the speed of light to be the same.  The frequency you measure will not agree, however.

As for your example:
Say we are in a rocket traveling at .6c.  We have a proton gun and we fire a proton at .8c, relative to us.  Relative to someone stationary outside the ship, what speed do you think they will see the proton traveling at?
You can't then it would be traveling at 1.4c.
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TheEngineer

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Re: speed of light
« Reply #46 on: November 03, 2007, 12:37:36 PM »
Quote from: Captain Alitus on November 03, 2007, 12:31:37 PM
Quote from: TheEngineer on November 03, 2007, 12:24:21 PM
The speed of light is invariant.  No matter what velocity you or anyone else are moving at, you will all measure the speed of light to be the same.  The frequency you measure will not agree, however.

As for your example:
Say we are in a rocket traveling at .6c.  We have a proton gun and we fire a proton at .8c, relative to us.  Relative to someone stationary outside the ship, what speed do you think they will see the proton traveling at?
You can't then it would be traveling at 1.4c.
No, it would be traveling at .945946c.
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Agamemnon

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Re: speed of light
« Reply #47 on: November 03, 2007, 12:42:25 PM »
Quote from: TheEngineer on November 02, 2007, 02:21:29 PM
It's quite simple really:

The captain says "Make it so."
The navigator presses the warp button.
Matter/antimatter reaction products are passed through the warp coils.
Subspace field bubble forms around the space craft.
Presto, we are going faster than light.



Interesting...
the only problem is that matter/antimatter reactions do not form any (physical)products the only thing that is produced is energy.
And i'm not sure what a "warp coil" is.

Please cite this technology or thoery.
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TheEngineer

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Re: speed of light
« Reply #48 on: November 03, 2007, 12:43:21 PM »
Quote from: eric bloedow on November 03, 2007, 12:27:57 PM
but i remember an article in a science magazine: shine a spotlight on a distant wall to make a spot of light; then turn the spotlight very quickly. the spot would appear to move faster that light, but it's just an optical illusion.
It's not an illusion, it is a very real phenomenon.  However, this can not be used to transmit information.
« Last Edit: November 03, 2007, 12:45:58 PM by TheEngineer »
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TheEngineer

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Re: speed of light
« Reply #49 on: November 03, 2007, 12:45:43 PM »
Quote from: Agamemnon on November 03, 2007, 12:42:25 PM
Interesting...
the only problem is that matter/antimatter reactions do not form any (physical)products the only thing that is produced is energy.
And i'm not sure what a "warp coil" is.

Please cite this technology or thoery.
::)
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Captain Alitus

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Re: speed of light
« Reply #50 on: November 03, 2007, 12:48:45 PM »
Quote from: TheEngineer on November 03, 2007, 12:37:36 PM
Quote from: Captain Alitus on November 03, 2007, 12:31:37 PM
Quote from: TheEngineer on November 03, 2007, 12:24:21 PM
The speed of light is invariant.  No matter what velocity you or anyone else are moving at, you will all measure the speed of light to be the same.  The frequency you measure will not agree, however.

As for your example:
Say we are in a rocket traveling at .6c.  We have a proton gun and we fire a proton at .8c, relative to us.  Relative to someone stationary outside the ship, what speed do you think they will see the proton traveling at?
You can't then it would be traveling at 1.4c.
No, it would be traveling at .945946c.
.6 + .8 = .945946

erm
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TheEngineer

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Re: speed of light
« Reply #51 on: November 03, 2007, 12:49:28 PM »
What's wrong?
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Roundy the Truthinessist

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Re: speed of light
« Reply #52 on: November 03, 2007, 12:50:39 PM »
Quote from: TheEngineer on November 03, 2007, 12:45:43 PM
Quote from: Agamemnon on November 03, 2007, 12:42:25 PM
Interesting...
the only problem is that matter/antimatter reactions do not form any (physical)products the only thing that is produced is energy.
And i'm not sure what a "warp coil" is.

Please cite this technology or thoery.
::)
You don't think he was serious, do you?
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Quote from: wise on August 21, 2018, 11:47:45 PM
Where did you educate the biology, in toulet?
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TheEngineer

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Re: speed of light
« Reply #53 on: November 03, 2007, 12:51:39 PM »
I think he was.
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Captain Alitus

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Re: speed of light
« Reply #54 on: November 03, 2007, 12:52:55 PM »
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Roundy the Truthinessist

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Re: speed of light
« Reply #55 on: November 03, 2007, 12:54:44 PM »
Quote from: TheEngineer on November 03, 2007, 12:51:39 PM
I think he was.
It's funny because I was gonna say something, but I just thought, "nah, this guy's just joking."  ;D
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Quote from: wise on August 21, 2018, 11:47:45 PM
Where did you educate the biology, in toulet?
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TheEngineer

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Re: speed of light
« Reply #56 on: November 03, 2007, 12:55:00 PM »
(.6c+.8c)/(1+.6c*.8c/c^2)=.945946c
« Last Edit: November 03, 2007, 12:59:21 PM by TheEngineer »
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Jack

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Re: speed of light
« Reply #57 on: November 03, 2007, 01:28:32 PM »
Quote from: eric bloedow on November 03, 2007, 12:27:57 PM
some physicists believe that an object moving faster than light would go back in time, and therefore appear to be moving backwards! that's an interpretation of Einstein's work.

False. It's not possible to travel back in time. However, via the Twin Paradox, you can travel into the future.
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Username

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Re: speed of light
« Reply #58 on: November 03, 2007, 04:45:05 PM »
Quote from: Jack- on November 03, 2007, 01:28:32 PM
Quote from: eric bloedow on November 03, 2007, 12:27:57 PM
some physicists believe that an object moving faster than light would go back in time, and therefore appear to be moving backwards! that's an interpretation of Einstein's work.

False. It's not possible to travel back in time. However, via the Twin Paradox, you can travel into the future.
I travel into the future everyday.
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TheEngineer

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Re: speed of light
« Reply #59 on: November 03, 2007, 04:48:36 PM »
Quote from: Jack- on November 03, 2007, 01:28:32 PM
Quote from: eric bloedow on November 03, 2007, 12:27:57 PM
some physicists believe that an object moving faster than light would go back in time, and therefore appear to be moving backwards! that's an interpretation of Einstein's work.

False. It's not possible to travel back in time. However, via the Twin Paradox, you can travel into the future.
By simply moving, you are traveling through time at less than the speed of light.
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