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Why does string theory have such a huge landscape? 27 Aug 2013 | 08:06 pm
I was browsing through Foundations of Space and Time, a compilation of essays on various theories of quantum gravity. The following passage in the introduction intrigued me: Each compactification lea...
Are Stokes' theorem and Gauss's theorem examples of the Holographic Principle? 27 Aug 2013 | 07:11 pm
Before I write this question, I'd want to say that I've read this question, and Lubos Motl's answer to it (I found it through the "Questions that may already have your answer"). My question isn't exa...
What does the height refer to in the Bernoulli equation? 27 Aug 2013 | 06:34 pm
What does the height refer to in the Bernoulli equation? I'm trying to determine the pressure on a surface where the length is short enough that the velocity should be constant across it. So, the id...
What is the 1977 Wow signal? 27 Aug 2013 | 06:25 pm
Can someone explain about the 1977 Wow signal? I know that it is a signal received from space in 1977, in the form of a series of code "6EQUJ5". What I want to know is what does this code mean? Why ar...
Collision of two balls 27 Aug 2013 | 05:21 pm
Two balls, with masses $m_1$ and $m_2$ are falling from the heigh $h$. All the collisions are perfectly elastic. Do not consider the size of the balls. $m_1 < m_2$ and lighter ball is on the top. Wha...
Characteristic length of a triangle 27 Aug 2013 | 05:12 pm
I am reading a paper on collision detection in cloth simulation, please help me understanding following lines written in the paper : To check if a point x4 is closer than some thickness h to a triang...
Absence of Wick rotation from non-commutative spectral models back to Minkowski signature 27 Aug 2013 | 02:30 pm
I understand non-commutative spectral models as the kind of models initiated by Connes et al. Does the absence of Wick rotation from non-commutative spectral models back to Minkowski signature can ca...
Frequency of small oscillation of particle under gravity constrained to move in curve $y=ax^4$ 27 Aug 2013 | 12:12 pm
How to find the frequency of small oscillation of a particle under gravity that moves along curve $y = a x^4$ where $y$ is vertical height and $(a>0)$ is constant? I tried comparing $V(x) = \frac 1 2...
Stress due to the mismatch of thermal expansion coefficients of two different attached materials 27 Aug 2013 | 10:58 am
I'm simulating the thermo-electro-mechanical behavior of a copper wire which is surrounded by silicon dioxide. In other words, the wire segments is under mechanical and thermal loads and at the same t...
Nuclear Weapon Effects: Cloud Rise 27 Aug 2013 | 10:48 am
I am interested in modeling the rise of a nuclear cloud to stabilization height post detonation. I am interested in any ideas you may have on the approach. I have collected some research on the topic ...
