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Accordingly to the Big Bang cosmology, the last scattering surface is a 2dim (topological) sphere S2. The sphere is a TWO SIDED surface. On the inward side of the last scattering surface was, and...
02 March 2014 7,036 7 View
If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...
07 August 2024 5,343 2 View
Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...
07 August 2024 1,937 1 View
Consider the case of negligible gravity but there is an accelerating reference frame. Its origin traces out a trajectory, or world line, seen in some inertial reference frame. The Lorentz metric...
24 July 2024 1,608 15 View
students already took 1. numerical methods 2. programming language 3. Probability and statistics
09 July 2024 6,271 3 View
Hello dear colleagues and professors Please what is the recommended type of pseudopotentials for QE? ultrasoft or norm conserving?? And from where get all types of pseudos (us, nc, pbe,...
09 July 2024 9,541 5 View
The photo-electric effect does not support quanta in light, since a light particle moving towards a surface cannot cause an electron to move away from the same surface at a right angle. Instead, a...
06 July 2024 2,288 35 View
We assume that the Schrödinger wave equation, iℏ(dψ/dt)= Ĥψ. . . . . (1) is incomplete and cannot be considered a unified field theory. on the other hand, its square, d/dt)partial U= D Nabla^2...
06 July 2024 7,106 8 View
Let's assume medium-free radio transmission where we know the boundaries are the emitter and receiver. We have not yet, using math, formulated the marginal properties of emptiness that must be...
24 June 2024 7,038 4 View
So what turns her on? … A man who makes her feel ‘safe’ and treats her like she is a vital part of his very existence, and not just a favourite sperm dumpsite. (Yangki Akiteng)
22 June 2024 4,988 2 View
She can say she had 5 orgasms and you will have no way of proving her wrong. Truth is what man would even want to prove her wrong. We all like to believe that we laid it down right, so who is...
20 June 2024 1,149 0 View
