Recent content by PapalPhysicist

I listen to these things while I drive, exercise, or do work that otherwise occupies my hands and eyes, but not my mind. That's why this would be a good time to slot this in. I understand that this is a very niche thing. I'm simply trying to find if anyone knows of something like it.

Hi, I'm an engineering major. I began my college years with a substandard understanding of math. I am now taking Calculus 3 and Differential Equations this semester. I have made average grades up to this point and I am actually improving in that respect. Hopefully I'll come out with an A and B...

Okay so I'm currently in cal 3. I've also taken physics 1 and 2. When I first saw the position function differentiated into velocity and then to acceleration I was awestruck. Math is beautiful and divinely structured. That's what I thought. But as I've gone on and worked with it more and more...

Thanks, I'll look into the paper. I've been trying to find papers on group velocity but they have all been stuck behind a pay wall. On a bit of a tangent, any good sources for scientific journals that are free?

http://m.phys.org/_news88249076.html

A co-worker recently shared an article with me that demonstrated a sound pulse traveling faster than c. After doing much research, I am still confused as to how this does not send information faster than light. If the leading edge of the pulse arrives before the rest of it, how would that...