53 more posts in this thread. [Missing image file: tyson.jpg]
Does Neil Degrasse Tyson owe his success to Affirmative Action?
Has he even done much for science? He strikes me as a guy who can make himself appear much smarter than he actually is by speaking eloquently and using sophisticated vocabulary. When I watch videos of him he's usually talking about some relatively simple scientific (or other) concept that even a non-science person (such as myself) can easily understand, but he makes it seem like he's really smart for knowing it.
I think the media is just touting him as some extraordinary genius because he's black. As if to say, "See? Blacks are just as capable as whites!" Or to give blacks a scientific figure that they can flaunt in front of whites and say "what now, whitey? We scientist now." Just like how blacks often rub Obama in the face of whites as a way to say that they're in control now.
He reminds me a lot of his mentor Sagan i.e. a good speaker w/ a moderate understanding of science, but with very little new things to add. A lot of my peers and people online seem to think Sagan is among the smartest men in history, but I've personally always felt he was extremely overrated. I hope I'm not alone in that opinion. I just can't help but think Sagan would be almost unknown today if he hadn't made Cosmos or whored himself out to the media like he did.
I don't browse /sci/ much and I've never seen threads about Tyson or Sagan. I just wanted to get your opinions. Forgive me if it's already been asked.
12 more posts in this thread. [Missing image file: radial.png]
Quantum Physics: I'm trying to figure out why my radial wavefunctions aren't orthonormal.
See pic. I defined the wavefunctions for R2,0 and R2,1, and attached literature for comparison. This is for Hydrogen and I'm using atomic units, so Z and A0 = 1. I'm pretty sure the functions I wrote in mathematica are correct.
I know that <Rnl l Rnl > = 1 if they're the same Rnl, and 0 if not. My normal is working, but my ortho isn't, as you can see in the pic. I also know that because there are in spherical coordinates, you are integrating r^2 dr, which is why I have those extra r's in the integral. Actually, anyone who can help me probably would understand that. Also the functions are real valued so the complex conjugate doesn't matter.
What am I missing?
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Alright, /sci/, I've decided I want to master mental arithmetic. That is, I want to be able to do rapid arithmetic operations in head (addition and multiplication, and possibly some powers, of integers and rational numbers). I am a math major, but this is mostly just a private interest of mine. Has anyone on here tried this? Any tips or links?