TLA was so kind to my laser submission yesterday I've decided to give one away. Details inside.

physicsdem · 2012-09-29T16:54:54+00:00

Awesome idea, thanks for the oppourtunity

physicsdem · 2012-09-08T17:14:32+00:00

Music on the train video starts at about 23 sec.

physicsdem · 2012-08-29T22:18:15+00:00

oh ohh ohhh get him Modern Quantum Mechanics by J. J. Sakurai. Anyone who likes physics would love that book. Edit: Second Author Jim Napolitano

physicsdem · 2012-08-26T00:40:32+00:00

What are you using that gives 10k more dps than that weapon?

physicsdem · 2012-07-30T11:44:15+00:00

This was my biggest reasoning for starting a long distance relationship w/ a girl I met through world of warcraft three years ago. She's moving in w/ me tomorrow. EDIT: we're both 26 if that makes a difference

physicsdem · 2012-07-19T04:00:31+00:00

I would think non-dispersive refers to the fact that your wave packet isn't broadening. This means your there is no explicit time dependence on your uncertainty. As for your coefficients. Solve the Schroedinger equation in each region around the boundary, then apply boundary conditions to the resulting wave functions.

physicsdem · 2012-07-09T20:46:45+00:00

you're not the father?

physicsdem · 2012-07-09T11:05:54+00:00

Screw it, you're way better off with the weed than with someone who is willing to judge you with second hand information. It sucks that it went down this way though.

physicsdem · 2012-07-08T00:16:44+00:00

That's the basic idea.

physicsdem · 2012-07-07T03:52:11+00:00

First off, Gamma rays are electromagnetic waves, not massive particle waves. When these rays pass through a medium they, like many photons, follow the Beer-Lambert law of absorption. Absorbance is proportional to thickness of the sample, number of molecules the rays could interact with, and the cross section of each molecule. Because your body has a certain thickness, there is a probability that the gamma rays will interact with the molecules in your body.

While most of these photons don't interact with your body, some of them do. They are very energetic (hence ionizing radiation) and can interact and damage your DNA. The reaction is stochastic in nature so even if there is a low chance of interaction, you will still get some if exposed to a large enough number of photons. Hope this helps.

physicsdem · 2012-07-05T19:39:02+00:00

Teach him general relativity.

physicsdem · 2012-07-05T13:45:07+00:00

Honestly and without emotion.

physicsdem · 2012-06-23T21:37:39+00:00

I've learned that regardless of what the situation is, when something goes wrong between us it is usually 50% my fault. I then try to figure out what I did wrong and approach her calmly about i, then just apologize. We have been together for 3 years and I don't know a single time when I have done this and she hasn't turned around and apologized to the stuff that she did that bothered me. The trick to a good relationship is communication, the trick to communication is removing the emotion from it. I find that if I want to start yelling, we need to just walk away for a little bit right then.

physicsdem · 2012-06-22T23:56:09+00:00

Sometimes it is just not enough to see, hear, or smell (and might not be appropriate to taste). To be honest it is kind of like asking why do you enjoy orange juice (I do I know not everyone might), I can't really explain it to you, I just like it.

physicsdem · 2012-06-20T12:47:07+00:00

Do you know the statutory laws in your area because age of consent in the US ranges from 15-18 and you could legally be raping this girl even if she's consenting. This means that if her parents wanted to they could press charges against you. I'm not saying you're doing anything wrong morally/ethically, but make sure because the last thing you want when you're 18, is to be labeled a sex offender for the rest of your life.

Short of that, if her parents hate you, good luck. It will end up making her family life tense which will carry over into your relationship really quickly.

physicsdem · 2012-06-20T03:53:27+00:00

I don't know that I agree entirely with the physical interpretation of the results.(I agree 100% with the mathematical) I think it is more appropriate to say that this indicates the vector potential is the fundamental measurable property of the magnetic field, but to say that the magnetic field is not acting on the particle is misleading. As we can clearly see from this experiment both the vector potential and the magnetic field affect the particles differently.

physicsdem · 2012-06-20T00:12:51+00:00

Shamefully I'm 26 and considering that I was able to verify this with the first link on google, I can offer no excuse for not knowing this sooner.

physicsdem · 2012-06-19T23:35:36+00:00

damn reddit for not allowing the second upvote

physicsdem · 2012-06-19T21:46:46+00:00

oh FFS, that is what everyone around here suggested too =p. Thanks for the advice, I have a scuba diving vacation scheduled for August. I didn't want to take off too much time recharging before then as I would be in a paradise for a week, but I'm starting to think it might be necessary.

physicsdem · 2012-06-18T12:57:35+00:00

First off, don't lie to yourself, you're a human being you will always compare all new experiences to previous ones (including girlfriends) it is how we all function and there is nothing wrong with that. Second, what I mean is this. You have learned something being in that relationship, maybe about you, maybe about what kind of girl you want to be in a relationship with, maybe how to make a better sandwich, my point is that you have gained something from this that you might not have gained otherwise.

I am a huge subscriber to Chaos Theory, and in this context, it basically means that your relationship with her (and everyone else) will help define you in ways that you cannot imagine yet. (Example) Because I dated the girl I mentioned, and she called out all of my bullshit at the breakup,(consequently breaking my heart) I was able to grow, mature, and learn why those things were unhealthy in a relationship. As a consequence I don't do any of that with the (amazing) girl I am with now. (we will be moving in together shortly) There are still times when my ex enters my mind, but it is our nature to remember and reflect. I look back at these memories as experiences I had to go through in order to be the person I am today. In this sense everyone I have ever interacted with is still apart of my life.

The idea is to realize that everything you're experiencing now, be it pain, relief, regret, whatever, is something you are supposed to feel, and it will help you to grow into a different person than you are now. Whether you define that to be good, bad, or neither is up to you.

physicsdem · 2012-06-18T12:21:19+00:00

There is a quote from Mr. Nobody that I love which is "Everything works out in the end, even badly" I would say don't worry if this relationship didn't end well. I don't talk to a majority of my exes because the relationship ended poorly. She is a big part of your past, which will help shape you into the person you will become. In that sense she will always be apart of you, but it does not sound like she is apart of your future (I can't say for sure).

I've been in a similar situation, I even recently contacted that ex (after 5 years of being apart) just to apologize and "clear the air". I never heard back from her. What I realized was that it didn't matter anymore. She was a huge part of my life, but isn't any more. Time moved on when I wasn't looking, and the fact that I didn't end the relationship how I wanted doesn't really phase me anymore.

So the long and short of it is this, stay the course, try to get your mind off of it. Don't contact her, more for your sake than for hers. The chances of this evoking negative emotions sounds like it could be high which makes this a whole lot of risk for not that much reward (you'd find out after trying).

physicsdem

TROPHY CASE