A must watch YouTube video on stylus in the groove!!!

This one??

https://m.youtube.com/watch?v=GuCdsyCWmt8

Uberwaltz thats the one I was going to post. Thank you!

All of this was predicted by Zoeppritz in 1907..it has to do with seismic waves that travel thru the Earth...but also thru all materials.
Vinyl and speaker cones of any type. Your audio room, musical instruments of different materials and shapes. 

So if in the the 50 minute video the vibrational energy was to travel the flat plane and intersect a paper label or the outer edge of the record the energy would be reflected back towards the stylus and become a part of the intended signal..it would become a part of the signal. Not in phase..but it would now have many different phase components because of material type and all boundary interfaces..

When an incident P-wave strikes the boundary (or interface) between two media obliquely, the wave is split into reflected and refracted P-wave components and reflected and refracted S-wave components. The reflection and transmission coefficients vary as a function of the angle of incidence (hence, of source-receiver offset) and of the media's elastic properties, which comprise densities and bulk and shear moduli. The Zoeppritz equations (Chapter 1) give the reflection and transmission coefficients for plane waves, as a function of the angle of incidence and as a function of the three independent elastic parameters on each side of the reflecting interface. If the reflection amplitude is observed as a function of the angle of incidence, the variation of that parameter can be used to make inferences about the elastic parameters. Tom

Permalink: https://doi.org/10.1190/1.9781560803201.ch4

I did not write the info preceding the link and posting my name at the end.  Sorry I usually sign off the same way every time. Tom

Did anyone bother to actually watch and listen to the video? This is not slow motion. The guy clearly says at 3:30 "in order to make a decent image the scanning electron microscope requires about 10 seconds per image". 

Where is the stylus bouncing? The jerky motion is simply the guy is doing stop motion. Like claymation. Stop motion. Lord. All this BS because some noob don't even know wtf he's looking at. And 5 years old at that. 

The only thing dumber is trying to say this has anything to do with seismic waves. Oh wait, what's this?

All of this was predicted by Zoeppritz in 1907..it has to do with seismic waves that travel thru the Earth.

So Zoepprotz predicted a YouTube video in 1907. The last thing he did, no doubt, before being beamed aboard the mother ship. 

So the OP using two different audiogon accounts ? Why ?
@theaudiotweak is Tom 
@romwh is also Tom 



P.S. The video is from 2015 and i believe everyone seen it before many times