The speed of light (c) can appear in the denominator, numerator, squared or not, negative or positive in any of the equations of relativity. The term "conversion factor" is a general expression for any of these forms. Real physics is done using a mathematical expression. Whatever you like to call a conversion factor is unimportant...
Not when we're discussing the conversion factor between distance and time and you get it wrong three times. So don't
you lecture me on "real physics". You haven't got a clue about real physics.
Perpetual Student said:
Your fixation on the words is your undoing as I will further demonstrate here.
No you won't. You'll just flounder around and dig yourself even deeper into the hole you're in.
Perpetual Student said:
You said above,What you fail to understand is that the only thing that matters is how time is used mathematically. That is how modern physics is done. Your Aristotelian notions about motion are irrelevant and unscientific.
Wrong. What matters is understanding. That's why we do physics. To understand this world, and benefit from our understanding. Not to indulge in abstract mathematics that ends up with some untestable unscientific hypothesis that rumbles on for decades because it's deliberately insulated from experimental disproof, because it's a "theory of anything" and in truth not a theory at all. .
Perpetual Student said:
More words! Newton defined gravity in scientific terms with mathematics. We feel gravity...
It's not just words. Pencils fall down, and as Newton noted, so do apples.
Newton's mathematics advanced our understanding, but in case you hadn't noticed, that mathematics came with words. And here's some more words from Newton that might further advance your understanding of gravity:
"Doth not this aethereal medium in passing out of water, glass, crystal, and other compact and dense bodies in empty spaces, grow denser and denser by degrees, and by that means refract the rays of light not in a point, but by bending them gradually in curve lines?"
Perpetual Student said:
...and we sense the passage of time.
No we don't. We sense the passing of buses because we can see 'em, and smell the diesel, and feel the air they displace blowing our hair. But we don't
sense the passage of time any more than we sense angels dancing on the head of a pin. It's just a figure of speech, and there is no empirical evidence to support the notion that time passes or flows or that clocks are magic chronological gas meters.
Perpetual Student said:
Our human feelings about these things remain general observations...
And you don't observe time passing. You don't observe that clocks
measure the flow of time. You take the back off a clock, and what you observe is cogs and sprogs moving in a regular cyclic fashion.
Perpetual Student said:
...until some scientific statement is made about these notions using mathematics.
What, you mean things like this?
That won't help you to understand what a clock actually does. You need to look at the clock for that, not a mathematical definition of proper time.
Perpetual Student said:
Your dismissal of Δx/Δt as a scientific expression of motion is quite revealing.
I haven't dismissed that expression for velocity. What I've said is you can see a gap aka a space and you can see things moving, but you can't see time flowing, so you give some priority to the things you can see over the things you can't, and it pays dividends. I suggested you start a thread on the latter, but you declined.
Perpetual Student said:
On the contrary, when doing physics the only thing that matters is how motion is defined mathematically.
What matters is what actually happens in the real world.
Perpetual Student said:
Here, we have the fatal flaw revealed in your pseudoscience. You do not understand that general notions about the behavior of the universe have been supplanted with mathematical descriptions.
They haven't been supplanted with mathematical descriptions, they're supported by mathematical descriptions. Which offer testable predictions which support the theory and give us confidence that our understanding is correct.
Perpetual Student said:
Newton is a long way (in time

) from Aristotle! Quite ironically, you're living in the past!
Not me buddy. The physics I tell you about isn't in your fifty-year old textbooks yet, that's all.
Perpetual Student said:
I am not aware of a single poster on this thread who has expressed a belief in time travel. I have noticed that this has been your default straw man for a few years on this and many other threads...
See what I said to Clinger. I listed a bunch of crackpot notions, Godless Dave started this conversation on time travel.
Perpetual Student said:
Follow your own directive and "stay on topic." If and when someone here expresses a belief that time travel is possible, I will mount my horse and join you in the heroic enterprise of thrashing all time travel windmills.
OK, so we're all agreed then that time travel is crackpot. Let's talk about something else then. Something that will help you understand why there's so much crackpot physics. How about the multiverse?