a dangerous positive-feedback loop

Jun 20, 2018 88 Replies

It will exist. Really fast picocells everywhere. Most people wouldn't need cable or DSL or phone lines or anything else.

You probably remember when you had to send a telegram across the state to communicate faster than the Pony Express. And expected that nothing would ever change.

John Larkin Highland Technology, Inc lunatic fringe electronics

Most people? You could say the same thing about 4G, now, except that cost thing. 5G isn't going to change that.

You're making no sense.

Engineering is a fine art, like painting or dancing, and you don't learn that from textbooks.

John Larkin Highland Technology, Inc lunatic fringe electronics

Yep. Tesla did intuition, and it's almost impossible to learn from his methods. For knowledge and understanding, read the academic writings of Steinmetz.

Similarly, the writings of Shannon on communication are wonderful (but really HARD to find simple quotable statements in). He knew how to do the applications, too, but what he wrote about was ... the universal underpinnings of all modern communication.

It's not a 'problem' at all, it's a matter of what you're addressing, the solutions for the day, or those for the coming age.

I wonder why John Larkin thinks that. Academic physicists and chemists are divided into theoreticians and experimentalists. The theoreticians are more interested in mathematics, but the experimentalists fill up journals like the Review of Scientific Instruments with stuff that measures the real worl d - not always as expertly as electronic engineers would like.

All of them? I suppose it was Tulane - anybody any good would have got them selves to MIT, as Jim Thomspon did.

Pages of equation do lead to more consistent results. Visual, intuitive app reciation doesn't lead you to properly optimised designs.

It's handy at the start of the desing process, when it helps you see what m ight be possible, but you do have to nail down those initial impressions.

Bill Sloman, Sydney

But they were shorter and more complete. The big difference is that UK unde rgradates were taught a lot more, and at a higher level, in secondary schoo l, and had about a year's lead on their American counterparts.

Back when you would have been an undergraduate, they formed a much smaller proportion of the UK population than their US counterparts formed of the Am erican population. The UK selection process wasn't exactly egalitarian (tho ugh the US system wasn't much better) but UK undergraduates could deal with a more demanding curriculum.

Bill Sloman, Sydney

There are art schools and dance schools. They have the advantage that paint and dance floors are cheap, so the artists and dancers can practice without burning through too many expensive integrated circuits and printed circuits.

Civil engineering and architecture face much more of a problem.

Bill Sloman, Sydney

Nyquist made intuitive and quantitative observations on sampling before Shannon did the heavy math. Someone observed that the great minds and Nobel laureats at Bell had one thing in common: they all ate lunch with Harry Nyquist.

John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com

Shannon stated the sampling theorem in a very compact way, in just a few lines, but he was by no means the first. E.T. Whittaker did it 35 years earlier, albeit far more verbosely.

Kotelnikov was earlier than Shannon and Nyquist too and wrote much better besides.

Jeroen Belleman

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