Housepets!

This is such an amazing yet heartbreaking strip :3 Poor King, poor Fox~ :c

Mine is built from parts. I use Windows as the OS because I have to (games and other one-of-a-kind programs that are only supported on Windows). I have Cygwin installed so I get all the awesome *nix utilities and a more real terminal. At work I use Debian. I would actually use Linux at home if it we...

No one in physics cares about anything but the leading order term anyway. XD

Wolfram Alpha is like a gentler version of the more expensive Mathematica. It has a much more lenient syntax compared to Mathematica (although the leniency gets reduced as the complexity of the expression increases). On the other hand, Wolfram Alpha runs from the "cloud" so the length of t...

I'm curious as to the reason why you would need to calculate the lifetime of the 2p state in hydrogen. I think that might illuminate the difference in our perspectives. It was a homework problem! :) But from a practical perspective knowing the lifetime (equivalently, the transition rate) of a state...

Looks like Concord -- I mean Grape -- shaved off her goatee.

Wolfram Alpha is an incredible thing. Mathematics, some Chemistry, it does an incredible amount of data lookup,solving, and tabulation. I just used WA yesterday to calculate a rather messy expression containing the fine structure constant, Bohr radius, Planck's constant, electron mass, etc. I was h...

Hey, there's always Wolfram Alpha if you want to do some simple matrix stuff!

There are actually whole other number systems that play by different rules than our own, and in some, things like A*B or even A+B are not commutative. ;) (Though that may not be what fylwind is talking about) Indeed. In quantum mechanics (QM) there are these things called "operators" that...

Gah, I thought I was done with math! One does not simply become done with math, for the journey never ends! :] I would probably be a little better off if my last year of High School math (Caculus no less) hadn't been with three different teachers. First a teacher who was experienced in teaching, bu...

√(-1/1) = √(1/-1) (Square root both sides) √(-1)/√(1) = √(1)/√(-1) (Simplify) If a and b aren't positive then √( a / b ) = √ a / √ b doesn't always hold. No amount of disguises can hide that! ^_^ The fun part of math is figuring out what happens when your "ordinary" algebraic rules don't ...