Recent content by Oerg

Thanks for the help anyway. Just wanted to be sure there isn't a commonly use term for it.

Yes! But is there a shorter accepted term for "corresponding element of the transposed matrix "?

Is there an accepted term for the symmetric counterpart of a matrix element? Tried searching the web but didn't really seem to find such a term mentioned anywhere.

I was reading Strogatz's book on nonlinear dynamics and chaos and in Example 7.2.2, he stated the energy function of the nonlinear oscillator \ddot{x} + (\dot{x})^3 + x = 0 as E(x, \dot{x}) = \frac{1}{2} (x^2 + \dot{x}^2) But isn't this the energy function for the harmonic...

Has anyone seen this yet? It's really funny! Quantum theory of Mitt Romney.

Walter has come a long way haha

I think the OP is referring to unfalsifiable theories a la the matrix. Biological limitations in trying to perceive nature the way it actually is. The universe could be created a second ago for all we know.

thanks for sharing, really loved the night sky.

I found this picture of Einstein while trolling the web and I thought it was quite funny. Anyone has any funny physics pictures to share as well?

I am not sure what cross section you are trying to find but... an angle is the ratio of the length of the arc to the radius, similarly, the solid angle is the ratio of the area subtended to its radius squared. The area of a part of a sphere is S=\int\int r^2 \sin{\theta} \, d\theta d\phi ...

there's nothing wrong with the answer, the Y shouldn't be there. Pr^2 Y means operating Pr on Pr Y

If we do not know what these tests measure other than how well you do on iq questions, then isn't it stupid to take the tests and infer conclusions from the results?

How many of physics's greats were child prodigies? It's still too early to tell if he will amount to anything (relative to the most influential of physicists). Of course being a child prodigy in math is a different story.

So when do you think our civilization will have the following technologies or never? Feel free to add to the list (by continuing the numbering for reference) 1. Elimination/Reversal of aging in humans 2. Quantum Computing (successful enough for wide commercial use) 3. Reasonably fast form...

My favorite numbers are 0, because we express a number as infinitely big with infinity but it isn't really a real number, and something as infinitely small (positive) as a zero which is a real number, and 42, because it is the answer to the universe according to Hitchhiker's guide to the galaxy.