Recent content by 7777777

Is infinity undefined in reals ?

I mean the static electric field whose source is a charge, an electron. To describe the electric field by Coulomb's law, only a charge is needed, there is no magnetic field. In this way it is possible to avoid talking about electro-magnetic field. Perhaps a single charge is enough. How to...

Maxwell unified the electric and magnetic fields into equations implying that light propagates as electromagnetic waves. Before Maxwell the electric field was described by Coulomb's law. Maybe the quantization of the electric field should be based on Coulomb's law, but I don't know if anyone...

A matter field sounds like a strange "mixture" of matter and field. Is it both matter and field at the same time? Does pure matter exist? Matter without a field. Or pure field? A field without matter? Matter is the source of fields, so if there is a field without matter, what could have caused it?

Do you mean that there are no such thing as electric or magnetic field in QFT? There are electric and magnetic fields at least in classical field theory described by Maxwell's equations.

Quantum field theory deals with the quantization of the electro-magnetic field, and finds its quantum: the photon. Electric and magnetic fields are classical fields. Can QFT quantize also them, and find their quanta? It is often said the electrons are field quanta (particles are quanta)...

Relativistic mass appears in the formula: E^2 = p^2 c^2 + m_{rest}^2 c^4 = m_{rel}^2 c^4 E = m_{rel}c^2 these formulas are taken from link One way to avoid writing relativistic mass is to write instead: E = m_{rel}c^2 = \gamma m_{rest}c^2 where \gamma = \frac {1} {\sqrt{1...

Ok, you did not need relativistic mass to give arguments that forbid faster than light motion and communication. You told that it is impossible for energy to move faster than light. Now I am thinking in layman's terms: how does energy have speed? I think this means the speed of light, and light...

For a long time I have studied and read about whether the photon has mass. On this forum, I could find a link to a document by Gary Oas: On the abuse and use of the relativistic mass. http://arxiv.org/pdf/physics/0504110v2.pdf Oas' paper tells about an investigation done to 164 students...

It is good to study a real example of approximating a circle as an infinite sided polygon. For example, the Viete's formula: http://en.wikipedia.org/wiki/Vi%C3%A8te%27s_formula Viete's formula represents a sequence of polygons with numbers of sides equal to 2^{n}, inscribed in a circle.The...

Ok, there is a direction in chemical equation, reactants are cause and products are effect, hence there is causality. But not in mathematical equation, there is symmetry in mathematical equation instead of causality. 1+1→2 does not make sense because 2 is not caused by 1+1, instead there is...

I am reading a chemistry book printed in 1805. The chemical reaction equations are written using the equality symbol = instead of the arrow →, which is used in modern times. Anyway sometimes it is still possible to see the "old fashioned" way...

If you imagine a circle with infinite radius, then its circumference is also infinite. Then what would be the value of pi be? Infinite divided by infinite. Can you say what it is? I think the real projective line may be a picture of this kind of "circle"...

Ok, I did not know what you knew, that's why I asked. In your post #15, you arrive at result a+a= -a+a. Let's not take the last step yet (the last step is that a+a=0). Instead, let's assume that we meet some aliens who have no knowledge how to calculate with our rules. So that they don't know...

It makes me wonder, this same problem appears again and again, so I try to put my 2 cents in. I think that the problem lies already at the OP's question: "why can't 1+1=0?" To me this kind of question means that the OP already knows that the result of his calculation will be 0, because he...