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Physics Stack Exchange!

December 14, 2010

Have you ever had a burning question in physics that you couldn’t find an answer for? Ever wonder why dust sticks to an rotating fan? Or what a cool home experiment might be to derive the speed of light?

Well, now your questions have answers. Physics.StackExchange.Com.

If you aren’t familiar with the StackExchange concept, it is mean to be the a free, community powered framework for creating Q&A sites on all sorts of topics from Cooking to Statistical Analysis. The idea is that enough people with a common interest get together, and prove they can make a Q&A site run, and not just be a dead zone, and then internet god Joel Spolskey will give you server space and the tools to make your dreams a reality. And thus, Physics.StackExchange.Com. The cool thing is that Joel and his comrades have put in all sorts of controls and tools to make sure that the site is not just some wasteland where every dodo with a pet theory of how Einstein got special relativity all wrong can post. Instead, it awards reputation to participants who ask good questions and provide reliable answers, and as your reputation increases, you’re given more power on the site.

You should be aware that StackExchange is the place to go when you want your question answered by real experts, and right now, I find many most of the questions daunting, even with a masters degree in physics. But it’s FAQ says it’s open to physics questions of all levels, from researchers academics and students.

I’ve already found it to be an incredible resource. I was able to learn exactly what is going on in this awesome photo from the Navy’s new 33 MegaJoule Rail Gun.

Did you know that that’s plasma following the projectile, accelerated by the Lorentz force of the railgun? Crazy. You’d better believe we’re going to study that when we get to energy and E&M.

And I was able to get a bit of deeper insight on my previous question about the self balancing unicycle.

I’d love to raise my reputation on the site by answering a few questions, but my understanding of rotons and maxons is a bit rusty, and there aren’t that many questions on the site yet. So this is where you can come in and help save the physics stackexchange (if we don’t get enough questions to prove the site viable) internet god Joel will smite it just like a wall hit with the Navy’s rail gun. So head on over to and post some of your questions.

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