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electronicafrind (Juan Esteban) wrote, "I need CD4060 and CD4063 LTSpice models, .subckt and .asy files."

When you joined this group, you read about the "Table of Contents" file (all_files.htm), which led you to the CD4060 model and symbol.? How did that work out for you?

Sorry, I can't help you with the CD4063.

Regards,

Andy

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Hello, John:

Thank you for the replies. Though several days ago, I would like someone could suggest some materials (textbook) about the semiconductors, electron-hole pairs, carriers, etc. Everything needed for a SPCE modeling. I even don't have the concept of where to begin. (Though I have heard "CMOS circuit design layout and simulation", but I am not sure if that's enough. And haven't done reading it yet.)

Though same "hole" things in this thread, but size is completely different. I have less things to say about black hole and the space things, I agree what you have said about the 1-dimension or 3-dimension, that's what I am familiar about, too. The idea is just an illusion. As you said , no one could prove it. Especially this/(those) body(ies) none exist in space (has no dimensions/size). No bodies...so that, I just think if the time-space is exchanged, time could be traveled, and space couldn't be traveled, but still in it, how to explain ? does that mean, fully filled the space , feel the all space ? Have (in) it all, but couldn't travel move forward/backward.

Just some interesting thoughts, has anyone ever dreamed about "being a small fish pursuit by a bigger one, and felt the bloody mouth of the hunter", thus feel the feeling/thoughts of the instances ?

Actually, this shouldn't be discussed here, so that, in fact, what I really hope to learn is , more inspirations about SPICE modeling.

If you could kindly help more inspirations.

Thank you very much.

Best regards.

---In LTspice@..., wrote :

Yes, there are many models of black holes, but none, I suppose, that are compatible with LTspice! No existing models are considered satisfactory. More research is, of course, needed.

There is a good explanation of the distorting effects of black hole gravity on space-time in 'From Eternity to Here' by Sean Carroll, ISBN9781-85168-795-4.

If the Universe is a black hole (as has indeed been suggested), we would almost certainly not be able to prove it, because we are inside it. Your question about 'outside it' is meaningless in terms of what we can know, and may be absolutely meaningless, by which I mean that if there are other black hole Universes, that might observe ours, no-one there could tell what is happening inside our Universe.

Opinion is divided on whether other Universes exist, and whether they could have different Laws of Physics, such as you suggest, where time-travel is easy and three-dimensional, but space is one-dimensional and space travel is not easy. Note that physical bodies cannot exist in a Universe with fewer than two space dimensions, and living bodies as we know them require three dimensions.

Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates 
Rayleigh, Essex UK

On 2018-11-23 03:13, ericsson.sunshine@... [LTspice] wrote:

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Hi, :

I am curious about the black hole, so though it's almost impossible, but ...maybe someone who might have studied that before...that's did anyone study hard about the black hole very well and? have built black hole model already ?

Recently, I heard that, there is theoretically sayings which states "in the black hole, the time-space is exchanged,? which says in the black hole, the moving-direction is only one way direction, and the time for the one inside the black hole is very slow (from viewpoint of the outside one from black hole), it seems meaning, in the black hole, space is only one way direction while the time could be varying forward ,backward, rightward, leftward, etc.(time-space exchanged)" , so that this saying caused me the question , is that possible that we are all living in a bigggggg BLACK HOLE, which includes the whole universe, and in this bigggggg BLACK HOLE, the time is one way direction, the space is traveling-abled,? as we experienced so far, but if this theory states is correct, would that means outside this bigggggg BLACK HOLE, OUT THERE, time is traveling-abled, and space is .....one way direction- LINED UP ? I don't quite know what's that, so that's why I'm here and the request, I hope to know more about the black hole , have anyone already built one ?

Thank you very much

Best regards.

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Hello Andy.

I occasionally have this situation (an additional extension txt is added). It annoys me. I do rename (delete txt). But since I rarely download models (I already have a lot of them), I put up with it.

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Bordodynov.

25.11.2018, 11:52, "Andy ai.egrps@... [LTspice]" <ltspice@...>:

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Eric, I imagine that the Chrome browser you use probably does the same thing as Windows Explorer: it displays the icon that Windows passes it, just the same as Windows Explorer does.

I've read that some web browsers change the filenames of some files when they downloaded them (by adding ".txt" for example to the end of the file).? I guess they probably do that to make it easier for you to open a text file even if the file you downloaded didn't already have a ".txt" on its filename.? I don't know if it's a setting you can change.? But not all web browsers do that.

Regarding the waveform plot colors, yes, a number of us change our color settings.? Me, I also find the blue waveform to be close to invisible on the black background, so I've always set my LTspice waveform colors differently.? What I do even differently from you, is to use a white (or very light grey) background.? I'm not the only one doing that.? I am not sure why I like dark waveforms on a light background, because oscilloscopes didn't do that; but I find it more pleasing to my eye.

Regards,

Andy

?

Hi, :

I am curious about the black hole, so though it's almost impossible, but ...maybe someone who might have studied that before...that's did anyone study hard about the black hole very well and? have built black hole model already ?

Recently, I heard that, there is theoretically sayings which states "in the black hole, the time-space is exchanged,? which says in the black hole, the moving-direction is only one way direction, and the time for the one inside the black hole is very slow (from viewpoint of the outside one from black hole), it seems meaning, in the black hole, space is only one way direction while the time could be varying forward ,backward, rightward, leftward, etc.(time-space exchanged)" , so that this saying caused me the question , is that possible that we are all living in a bigggggg BLACK HOLE, which includes the whole universe, and in this bigggggg BLACK HOLE, the time is one way direction, the space is traveling-abled,? as we experienced so far, but if this theory states is correct, would that means outside this bigggggg BLACK HOLE, OUT THERE, time is traveling-abled, and space is .....one way direction- LINED UP ? I don't quite know what's that, so that's why I'm here and the request, I hope to know more about the black hole , have anyone already built one ?

Thank you very much

Best regards.

?

Hi, :

I am curious about the black hole, so though it's almost impossible, but ...maybe someone who might have studied that before...that's did anyone study hard about the black hole very well and? have built black hole model already ?

Recently, I heard that, there is theoretically sayings which states "in the black hole, the time-space is exchanged,? which says in the black hole, the moving-direction is only one way direction, and the time for the one inside the black hole is very slow (from viewpoint of the outside one from black hole), it seems meaning, in the black hole, space is only one way direction while the time could be varying forward ,backward, rightward, leftward, etc.(time-space exchanged)" , so that this saying caused me the question , is that possible that we are all living in a bigggggg BLACK HOLE, which includes the whole universe, and in this bigggggg BLACK HOLE, the time is one way direction, the space is traveling-abled,? as we experienced so far, but if this theory states is correct, would that means outside this bigggggg BLACK HOLE, OUT THERE, time is traveling-abled, and space is .....one way direction- LINED UP ? I don't quite know what's that, so that's why I'm here and the request, I hope to know more about the black hole , have anyone already built one ?

Thank you very much

Best regards.

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Jerry, I have not read the paper you referred to, but regarding your simulation, I wonder why you connected a voltage source between the ends of the RC line?? Unless I'm wrong, it looks as if you still want to do that.? I'm wondering, why is that a useful thing to do, and what does it tell you?? I may be the "dummy" here, but it seems to me that the purpose of the RC ladder network was to have one end as the "input" and the other end as the eventual "output".? That doesn't happen if you connect a voltage source between the ends.

To show how much of a dummy I am, I didn't know what "EIS spectrum" meant, so I looked it up.? It is the Electrochemical Impedance Spectroscopy spectrum.? I think it has something to do with measuring the impedance of an electrochemical cell, which I think I understand, but there is a lot more to it that I don't understand.? Apparently it is customary to use Nyquist plots when doing this.? I don't know if it is the same kind of Nyquist plots that EEs are accustomed to using.

I'm just worried that we may not be speaking the same language as one another.

Regards,

Andy

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Eric, I imagine that the Chrome browser you use probably does the same thing as Windows Explorer: it displays the icon that Windows passes it, just the same as Windows Explorer does.

I've read that some web browsers change the filenames of some files when they downloaded them (by adding ".txt" for example to the end of the file).? I guess they probably do that to make it easier for you to open a text file even if the file you downloaded didn't already have a ".txt" on its filename.? I don't know if it's a setting you can change.? But not all web browsers do that.

Regarding the waveform plot colors, yes, a number of us change our color settings.? Me, I also find the blue waveform to be close to invisible on the black background, so I've always set my LTspice waveform colors differently.? What I do even differently from you, is to use a white (or very light grey) background.? I'm not the only one doing that.? I am not sure why I like dark waveforms on a light background, because oscilloscopes didn't do that; but I find it more pleasing to my eye.

Regards,

Andy