/sci/ - Science & Math

>>12015277
muh waves
muh time

>>12015277
say you have a box on a spring laying on the ground. say the box's position is x=0 when the spring is resting.
when you pull and release the spring, it goes back and forth across x=0 but doesn't just stop once it reaches there

why doesn't a pendulum stop in the middle?

>>12015464
>>12015542
In both of your comments there is some form of energy (kinetic, potential, etc.) that could be measured and named in the system. This is my question, what kind of stored energy is available to the wave at the moment of apparent zero magnetic/zero electric? Cuz if they both 0, where my third field at?

>>12015601
wtf?! I didnt know I'm aussie...

>>12015601
think about how EM waves are produced in the simplest example.
you can produce an EM wave by oscillating a charged particle. say you shake an electron from -a to a, where a is some arbitrary distance. you produce a traveling wave of amplitude a where the frequency depends on how fast you oscillate the charge

see gif related. the blue dot at the end is "producing" the EM wave. you see that the wave passes through 0 amplitude because the charged object passes through the point 0.

>>12015647
Love that gif. Seen it before but I'm saving it this time.

Alright so the zero point doesnt 'kill' the wave because there actually is no wave there. And this because the zero point is zero in relation to the moving charged particles starting position. And since the oscillations are caused by moving a charged particle (in this case) there is no wave energy to be had.

I think this is what youtuber Ken Wheeler means when he says waves aren't actual things, they are processes and specifically em waves are 'rates of induction' through a medium (yeah, he'd call that medium the aether but whatever...)

>>12015277
potential

>>12015601
>apparent zero magnetic/zero electric

>>12015756
>I think this is what youtuber Ken Wheeler means when he says waves aren't actual things
"yes"