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You should keep quiet.
Quote from: Bored chemist on 13/02/2020 20:20:00You should keep quiet.No, you should keep quiet. You are on this forum more than ten years and you haven't started a single topic yet (only two insignificant). You have nothing to say, pal. You are only screaming around and insulting the people.As I said, let us bet. I can bring a few thousand euros in the bet. If you are so sure that you know something, than accept the challenge. If you don't want my money, then you can give it to a charity organisation.
a strong cylindrical magnet with its positive pole down
one of the basic principles of nature is that the movement is always from the positive to the negative and not contrariwise
let us examine it in front of the screen of a CRT television, monitor, or oscilloscope - we will always find that the detector shows intense positive electricity.
Quote from: OPa strong cylindrical magnet with its positive pole downEditorial: In English, we refer to the poles of a magnet as "North" and "South", not "+" and "-" (I can't comment on other languages)......
Quote from: OPa strong cylindrical magnet with its positive pole downEditorial: In English, we refer to the poles of a magnet as "North" and "South", not "+" and "-" (I can't comment on other languages).
But "North" and "South" have no meaning for a magnet.
The words "Plus" and "Minus" are far more natural for the magnetic poles
It cannot be arbitrary, it cannot be a matter of human's convention.
It is like to say, who a male and who a female is, were a matter of convention.
It is a school CRT (more precisely Braun tube) just as any CRT in a CRT TV, monitor or oscilloscope.
Could we change the "convention" and reverse the arrows of the Plus and of the Minus. No, we can not.
It will be unnatural.
or this shorter topic "Is the designation "positive" and "negative" in electricity arbitrary?" https://www.thenakedscientists.com/forum/index.php?topic=78171.0
Similarly, if we touch with an ordinary phase-tester (PT) (one-contact neon test light) two different wires and notice that the lamp of the PT lights up stronger with the first wire than with the second, then we can say that the voltage in the first wire is greater than the voltage in the second.
What is an electric wind?
There are many experimental evidence that the direction of the conventional current is the true direction of the current.
My prediction that a non-symmetrical conical tube (mentioned in my OP) would make the beam curved even without an external electric or magnetic field could clear all doubts. I don't have the means to experiment, otherwise I would have carried out this experiment so far.
Quote from: Mitko Gorgiev on 20/02/2020 10:11:14But "North" and "South" have no meaning for a magnet. That's so wrong it's funny.Hang the magnet from a thread.The North pole points North and the south pole points South
What would be the meaning there of "North" and "South" for the magnetic poles?
Quote from: Mitko Gorgiev on 05/03/2020 11:47:13What would be the meaning there of "North" and "South" for the magnetic poles?Convention.Just the same as the meaning of "North" and "South" on a map of the moon.It has nothing to do with the fact that cathode rays are, in fact, cathode rays.Perhaps you should try to stick to the point.
In this video it is visible with naked eye
It's obvious that, if the shape of the tube made a difference, people would have noticed a hundred years ago.You need to explain why they missed it.
Please explain how you still think that a symmetrical environment is important to a straight line trajectory for electrons in spite of the evidence that in (among other things) electron beam welding, they travel in straight lines even in very unsymmetrical circumstances?Also, please explain how "nothing" pushes electrons around.
But, we know that (in the absence of a magnetic or electrostatic field) the electrons travel in straight lines.
Quote from: Mitko Gorgiev on 05/03/2020 20:59:30In this video it is visible with naked eyeYes, and, again you miss the actual point.If it is visible then it is not an electron beam.It is a beam of charged particles in low pressure gas.Stop posting pictures of things that are not electron beams.
The point remains that the beam is straight until the field is turned on.
Let's say we deform the tube a little with a bunsen burner. Then the straight "beam" will be also deformed even
What shape do you want?https://en.wikipedia.org/wiki/Geissler_tubeIt's obvious that, if the shape of the tube made a difference, people would have noticed a hundred years ago.You need to explain why they missed it.