Tip:
Highlight text to annotate it
X
- How do you explain, in the space going out into our Universe,
where do these IN-waves came from and where do the OUT-waves go to?
- Well, at first sight, if you just consider... one... wave center...
and you imagine it's got OUT waves, and it's got IN waves...
you're immediately puzzled now.
because you... you say: "Gee, the OUT-waves go on and on and on!"
"and they get lost out there in the infinity somewhere!"
And the IN waves, you immediately say: "Where do they come from?"
But,
that a serious mistake was to think of it all alone.
You must realize that the...
our Universe is just filled with... wave centers.
Every hydrogen atom... this pencil...
Wave centers everywhere!
And, so...
wave centers...
Waves go out...
and they... interact with... the other wave centers.
So there's a lot of exchange going on.
- Now our OUT-waves become their IN-waves, because a wave is a wave.
It has no tag on it saying "Hello, I'm an IN-wave" or "I'm an OUT-wave".
It's just wave, it's rippling thru space.
- IN-waves...
mathematically at least...
have a somewhat different character... than an OUT-wave.
So you simply can't switch them around.
- Yes, that's only relative to one particular wave center there...
once they're flowing back there at. - Right...
- And they can become a part of the IN-wave of another wave center somewhere else.
There's also another factor...
uuh...
which is still mysterious.
in that these... these waves are...
exponentials,
rather than sine waves.
The solutions of the equations are...
"e" to the "i omega t" [ exp(iwt) ]
which is the same as...
"cosine omega t" plus "i sine omega t" [ cos(wt) + i sin(wt) ]
That is an...
imaginary number, square root of -1.
and uhm...
it's not quite clear what that does to it, or how it...
changes the character of the wave.