Every question is valid no matter how stupid it may seem,
I think at times people forget that at one time they knew nothing.
Its really interesting when you find something out that makes you question everything you thought you knew..
The problem is sometimes you might not like what you find out, then you can't unlearn it and have to live with the questions it creates!
The interesting thing is exposure to something can start the learning process.
This is one of the problems I have with the Feynman video..he thinks that if he says what he knows that he would be wasting his time!
Does it hurt to say..assuming he has an answer. Even if its lost effort.<<< I don't think it is!
I suppose its nice to hear the answer towards the end of the video..
One other thing that is quite interesting is...that electricity is not something different or strange its part of the nature that we live in..ie not separate to it although we tend to isolate it! (think of it in isolation)
Regards
M. Gregg
I think at times people forget that at one time they knew nothing.
Its really interesting when you find something out that makes you question everything you thought you knew..
The problem is sometimes you might not like what you find out, then you can't unlearn it and have to live with the questions it creates!
The interesting thing is exposure to something can start the learning process.
This is one of the problems I have with the Feynman video..he thinks that if he says what he knows that he would be wasting his time!
Does it hurt to say..assuming he has an answer. Even if its lost effort.<<< I don't think it is!
I suppose its nice to hear the answer towards the end of the video..
One other thing that is quite interesting is...that electricity is not something different or strange its part of the nature that we live in..ie not separate to it although we tend to isolate it! (think of it in isolation)
Regards
M. Gregg
Last edited:
Many people,
like to be able to visualise something to be able to understand it!
Here is the problem..
How can you visualise something you can't comprehend!
(Bearing in mind, that in the future how much of it will be proved outdated).
Perhaps we need to develop the "Thinking computer" that does not look at things in the same way as ourselves!
But then how would it be able to explain anything to us? (ie our own thought process is our limitation) to comprehend.
One more thought..is "thinking" about talking words in your head or pictures or both..
How does a baby think or understand with no language? (What is understanding?)
Regards
M. Gregg
like to be able to visualise something to be able to understand it!
Here is the problem..
How can you visualise something you can't comprehend!
(Bearing in mind, that in the future how much of it will be proved outdated).
Perhaps we need to develop the "Thinking computer" that does not look at things in the same way as ourselves!
But then how would it be able to explain anything to us? (ie our own thought process is our limitation) to comprehend.
One more thought..is "thinking" about talking words in your head or pictures or both..
How does a baby think or understand with no language? (What is understanding?)
Regards
M. Gregg
Last edited:
Wrong..
You can do a think like this..or understand like this...but the reality is a bit more interesting..
Regards
M. Gregg
Last edited:
This question is to far up the ladder...the reason is.
What is an insulator and what makes a conductor a conductor.
What is voltage and what is current.
How is current generated.
What is DC.
What is the difference with DC compared to AC.
What is frequency.
How is power transferred.
What is the effect of inductance on AC compared to DC.
Then how does an analogue signal >>travel down<<<wrong. (A conductor)
Of course that's not taking into account modulation of the signal. (and type of signal)
(Why?)
Its far easier to say think like this..etc.<<and then you can build circuits!(You don't need to know all the above to build a circuit)
Regards
M. Gregg
Last edited:
This question is to far up the ladder...the reason is.
What is an insulator and what makes a conductor a conductor.
What is voltage and what is current.
How is current generated.
What is DC.
What is the difference with DC compared to AC.
What is frequency.
How is power transferred.
What is the effect of inductance on AC compared to DC.
Then how does an analogue signal >>travel down<<<wrong. (A conductor)
Of course that's not taking into account modulation of the signal. (and type of signal)
(Why?)
Its far easier to say think like this..etc.<<and then you can build circuits!(You don't need to know all the above to build a circuit)
Regards
M. Gregg
LOL, that's not an answer.
The simple answer?
The transfer of energy in the form of an electromagnetic wave from the source to the load.
If we accept this theory it makes it a lot easier to understand, imo, why non shielded ICs made from solid core conductors are directional. Especially silver solid core wire.
First start with bare wires separated only by air as an insulator.
Next add a dielectric, insulation, to the wire. Can the insulation have an effect on the transfer of energy of an electromagnetic wave?
Next factor in geometry. Insulated conductors run flat together side by side, twisted, braided, ect? Can geometry affect the transfer of energy of an electromagnetic wave?
Now try to explain the same effects of an IC's directionality if one believes an AC signal is alternating back and forth from the source to the load.
HOW can they be directional!
And why especially silver
If wires are directional, then how do you know which direction current will flow, as the return wire will have to be reversed in relation to the signal wire as it carries equal and opposite current!!!!
Last edited:
Must agree with you . How is the diode effect (directionality) produced in solid silver wire ? Is this only in drawn wire or is by some snake oil induced way also in cast wire and how does one determine the directionality of said wire. Enquiring Minds want to Know.HOW can they be directional!
And why especially silver
If wires are directional, then how do you know which direction current will flow, as the return wire will have to be reversed in relation to the signal wire as it carries equal and opposite current!!!!
That is not the simple answer; it is merely the wrong answer, except perhaps at microwave frequencies and above.James A said:
If you accept something which is not true then it often makes it easier to fool yourself that you understand something and so come up with spurious 'explanations' for phenomena which have not been proved to exist.
Yes, which is why wise RF engineers worry about insulation. Wise audio engineers do not.
Yes, of course. Minor snag is that audio is not about EM waves, as the pseudo-static (i.e. circuit theory) approximation is valid at sufficiently low frequencies.
A little knowledge is a dangerous thing, says an old English proverb. Lots of audio people seem to have a little knowledge of EM; just enough to confuse themselves or (in some cases) confuse their customers.
HOW can they be directional!
And why especially silver
If wires are directional, then how do you know which direction current will flow, as the return wire will have to be reversed in relation to the signal wire as it carries equal and opposite current!!!!
I first have to ask you have you ever built any ICs using solid core wire? If so did you ever check them for directionality?
I would bet not.
Here is a post from the late Bob Crump on cable directionality.
Quote.
Posted by rcrump on September 30, 2000 at 06:45:41
In Reply to: Re: maybe rcrump... I don't know, but... posted by Greg R. on September 29, 2000 at 19:47:48:
Solid core wire is extremely directional so just mark the end with some masking tape as it comes off the spool. Orient the wires so you have piece of masking tape at either end and terminate the wires. Throw it on a MOBIE or whatever overnight and then listen to it noting which way gives the highest image height. This is the correct orientation.
If you run the signal and return wires in the same direction you will end up with hot spots in the stage, normally at or close to the speakers, low image height and have a gaping hole in the middle of the stage...Keep in mind I am referring to the sound of the stage (reflections) not the individual instruments spread across the stage....Interconnects or speaker wires that have pianos wandering all over the stage normally have their signal and return going in the same direction....
Cable Asylum: maybe rcrump... anyone else too... by surround
Some may find this post interesting of Charles Hansen,
Manufacturer, Ayre Acoustics, Inc.
Quote.
A quote from Charles Hansen.
Finally, it should be noted that we *do* orient all of our axial-leaded plastic film capacitors. When the capacitor is wound, one of the leads will be connected to the outside conductor and the other lead will be connected to the inside conductor. Orienting the capacitor in the circuit properly makes a difference in the sound quality.
It took us a while to figure out how, but we built a machine that allows us to tell which end of the capacitor is which. It is a pain, but we sort every single capacitor and mark it for the correct orientation at each point in the circuit. If we had to *listen* to every capacitor to determine the correct polarity, I don't think anybody could afford to buy our products...
RE: Ping, Charles Hansen - Charles Hansen - General Asylum
Sadly, there is a very boring physical explanation for the fact that sometimes it is necessary to distinguish between the inner and outer foils of a capacitor. This has precisely zero bearing on the alleged directionality of audio cables. Quoting a confusing version of the former in support of the latter tells us more about the poster then it does about audio electronics.
Sadly, SY has just violated the code of conduct of The Maxwellian Brotherhood by dropping a broad hint about the very boring physical explanation for capacitor asymmetry (which some outside The Brotherhood may confuse with signal directionality). His actions will be considered at the next committee meeting, and sanctions may be applied unless he enters a plea in mitigation.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.