Recent content by TOKAMAK

Well, since you mentioned Muons, I figured I'd bring up: http://en.wikipedia.org/wiki/Muon-catalyzed_fusion Of course, it is impractical, and would be foolish to develop as an energy source, but still kinda neat.

Here's a few links about the performance of JT-60 if you're interested. I guess they were able to reach gains of 1.25 or thereabouts. http://www.mext.go.jp/english/news/1998/06/980611.htm http://www.jaeri.go.jp/english/press/980625-jt/

Ah ok, you mean like making the semiconductor devices themselves and things like that... Yeah that's not happening, heh.

Just some guy who built his own playstation 2 portable - as in it can play playstation 2 discs (and also playstation 1 games) in a handheld console.

Hey Pengwuino, have you seen this guy? http://www.benheck.com/

Hmm... I wonder if my physics degree will help me break into the garbage picking industry...

So would a bijective homomorphism be an isomorphism? I was taught (working with vector spaces) that a linear bijection is an isomorphism. Are these okay?

I once saw a 6x1.5 inch cylindrical magnet on ebay, i think around 200 hundred dollars? If I had an extra two hundred dollars, and perhaps an application for it I'd like to get one of those. I guess the optimal geometry for the neodymium magnet is a 1/8 "pancake" or cylindrical height/diameter...

425 pounds ---> about 200 kg, if we add the driver that's about 290 kg, 155 mph ---> about 70 m/s, so the kinetic energy is 1/2 mv^2 ---> ~ 95,550 joules. What units do you want? Joules? Calories? Btu's? Kilowatt-hours?

What kind of application? I would recommend looking into magnets of the neodyium iron boron variety. Just search for them on ebay, you should see a lot for sale there. I bought a 2x2x1 inch neodyium magnet that i think lifts over 200 pounds of steel. I've tested a little under 200 pounds so...

Huh, nifty. I wonder what the cross section for neutron capture of Hg 196 would be?

So, in essence, I'd have to call you up and ask you about your data you have on betelgeuze which would basically defeat the point of using this method to communicate, right?

If you want to skip the integration by parts, you can choose to use the differentiation under the integral sign: \int_{-\infty}^{\infty} x^{n} dx e^{-ax^{2}} = \int_{-\infty}^{\infty} dx \frac{d^{\frac{n}{2}}}{da^{\frac{n}{2}}}(-1)^{\frac{n}{2}}e^{-ax^{2}} So now you can take the...

Did you mean this? E(\phi , k) = \int_{0}^{\phi} dt \sqrt{1 - k^{2} \sin^{2}{t}} An elliptic integral of the second kind?

Additionally, you may want to write the derivative with respect to time in the final differential equation (containing r's and theta's) as: \frac{d}{dt} = \frac{d\theta}{dt} \cdot \frac{d}{d\theta} Nothing more than a chain rule here. However, you're probably going to glean a lot of...