Recent content by Trinitiet

I'm not sure if my interpretation is correct, but this Dirac Sea interpretaton does as far as I understand this, tell us that every energy level from -infinity to a certain energy level E<0 is filled with anti-particles. And this should be true for every single location in the universe. If...

Sorry indeed, that was quite a stupid proposal of mine :blushing:

Is this a possible solution to superluminal neutrinos? Landau and Lifchitz formulated the two postulates of special relativity as the following: 1/ All laws of physics should be the same in every inertial frame 2/ There's a maximal propagation speed for physical interactions The second...

Thank you, what is the basis for this statement? I tried to use the normal special relativity Lorentz transformaties for velocities, but I seem to get imaginary velocities.

Sorry, that's what I meant ;) But I was just considering the case IF it were true :p

Homework Statement Hi, This question is about Lorentzgroups. In my course of Relativity, we've seen a very little about representations of complete Lorentz groups but there are two little exercises, which we can do, but I do not understand what should be checked, not even how to start this...

Hi, Now we have the "faster than speed of light" neutrinos, I was wondering the next philosophical question: If we presume it is indeed correct they are faster than speed of light, would all observers of these neutrinos, no matter in what inertial frame of reference they are in, measure...

Well, the problem is, the big bang is a singularity in the time-spacedimensions. Special relativity indeed says we should stop the notion of simultaneity, but SR acts as if our spacetime is an Euclidic space (R^4). As that is not the case in macro cosmology (the universe expands, so the...

Ah thanks :-) !

As friction takes place, only in the direction the particle moves, wouldn't then friction only make the particle rotate slower (thus making each rotating circle of particles smaller), rather than moving the particles to one common plane?

Thanks :-) Is gravity the force that leads it there to?

Hi, I try to understand the nebular theory (how the solar systems are formed) but I keep having problems with the flattening. My physical intuition "feels" the flattening process should happen, but I want a physical/mathematical qualitative explanation. What is the key physical law that...

I wasn't really considering humans putting the frame around the nuclear trash :p I would've done that job with a robot :P

Ah I think I get it, thanks

Sorry, I meant to add good conductive metals (I don't think Lead is one?) Anyway, I can imagine the cost to be bigger when using metals, but when you use concrete you don't get anything out of it. You have the concrete box and there it is, doing nothing; contrary to the energy source it...