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Author Topic:   Existence
Boof
Member (Idle past 276 days)
Posts: 99
From: Australia
Joined: 08-02-2010


(1)
Message 1161 of 1229 (632399)
09-07-2011 8:07 PM
Reply to: Message 1151 by ICANT
09-07-2011 11:31 AM


Re: Inertial reference frames ... again
ICANT writes:
So you are in agreement with me that the photon travels at a 90 angle relative to the motion of the car.
Wouldn't that be true in every inertial reference frame?
No!
In the inertial reference frame of the car, the car is stationary and the photon travels at an angle of 90 relative to the motion of the tracks which are moving at 0.5c. I'm sure this has been explained many times.
Edited by Boof, : Tired some formatting. It was fun.

This message is a reply to:
 Message 1151 by ICANT, posted 09-07-2011 11:31 AM ICANT has replied

Replies to this message:
 Message 1163 by ICANT, posted 09-08-2011 4:43 AM Boof has replied

Boof
Member (Idle past 276 days)
Posts: 99
From: Australia
Joined: 08-02-2010


Message 1205 of 1229 (632597)
09-08-2011 6:58 PM
Reply to: Message 1163 by ICANT
09-08-2011 4:43 AM


Inertial Reference Frames
Hello ICANT, thank you for the welcome.
ICANT writes:
The car is not stationary. You can say it is at rest but you can't say it is stationary.
In your post you have not shown why I cannot use the word stationary, in fact my position is supported by NuNukes here: Message 1166.
ICANT writes:
The car is traveling at a constant speed of 0.5 c relative to the tracks.
Let us be a little more specific as per my previous post:
In the inertial reference frame of the tracks, the tracks are stationary and the car is moving at 0.5c.
Which in no way contradicts the statement:
In the inertial reference frame of the car, the car is stationary and the tracks are moving at 0.5c.
Can you see that?
ICANT writes:
So neither one is stationary.
Incorrect as I have shown above.
ICANT writes:
Everything is moving relative to something.
Every non-accelerating object is stationary within its own inertial reference frame. By definition.
So, to reiterate:
In the inertial reference frame of the car, the car (and the laser pointer, and the blackboard etc) is stationary and the photon travels at an angle of 90 relative to the motion of the tracks which are moving at 0.5c.

This message is a reply to:
 Message 1163 by ICANT, posted 09-08-2011 4:43 AM ICANT has not replied

Boof
Member (Idle past 276 days)
Posts: 99
From: Australia
Joined: 08-02-2010


(2)
Message 1228 of 1229 (633386)
09-13-2011 8:37 PM


Readers Digest Version
ICANT in his OP essentially stated that he wanted to discuss existence. In particular his understanding that The Bible declares existence is responsible for bringing into existence all that exists.(!)
This naturally led to some unproductive discussion about the meaning of existence, which caused ICANT to reframe the question in message 105:
1. Has the universe existed eternally?
OR
2. Did the universe begin to exist?
3. If the universe began to exist, can you present a mechanism whereby that process would take place?
This led to some further debate about time and whether this could be used to measure existence, and, subsequently, the fact that time can pass at different rates in different reference frames. Which is how we ended up discussing the Twins Paradox, The MM experiment and ICANT’s thought experiment with his magical bending light beam.
Throughout the discussion we hit numerous brick walls including ICANT’s difficulties understanding basic terms used in physics including, but not limited to:
Time (versus duration)
Infinite
Speed, velocity and acceleration
Dilation
Stationary (versus at rest)
Reference frames
These communication difficulties essentially rendered all hope of progress futile, although it did provide some enjoyment, and in my case education, to the lurkers present.
I suggest that ICANT limit future forays in to the world of physics to the understanding of some of the simple terms mentioned above before moving on to some of the more complex subjects found in Classical Mechanics.
Edited by Boof, : Changed formatting to improve readability

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