Mystery solved?

Vannevar Bush and John Early Jackson solved this in about 1960, as a retirement project. They published it in the late lamented Amateur Scientist column in the once-great Scientific American.(*)

Their two articles are well worth reading.

Cheers

Phil Hobbs

(*) (SciAm has been trash since about 1990, when they started trying to compete with the now-dead Omni magazine. A pity.)

On Sat, 9 Apr 2016 13:12:02 -0700 (PDT), Phil Hobbs Gave us:

Ever been to this museum?

On Sat, 9 Apr 2016 13:12:02 -0700 (PDT), Phil Hobbs Gave us:

snip

If you like cats, here is a nice kitty hug.

On Sat, 09 Apr 2016 16:32:36 -0400, DecadentLinuxUserNumeroUno Gave us:

This one is actually "right up your alley"... (Phil) (I guarantee you'll like it)

Ah, yes, the old "orbital angular momentum" wheeze. It's another basis set for the EM field, but it doesn't give any more modes.

Cheers

Phil Hobbs

On Sat, 9 Apr 2016 14:19:25 -0700 (PDT), Phil Hobbs Gave us:

Are you trying to twist their words!!!? :-)

There is also a gravitational coupling that just barely might be detectable.

Roger the SciAm trash.

Wow! The gravitational effect would be so far in the noise, I can't imagine how it could possibly have an impact.

I agree with the SciAm thing. I used to subscribe but eventually gave it up when they stopped having any content that was challenging. It's sad to see how low they have sunk while having a 150+ year history of such good work. I can't imagine how it happened. Were they running out of money? Were they pushed to the wall?

On Sat, 9 Apr 2016 22:30:40 -0400, rickman Gave us:

Janice Joplin figured out how a truck driver's windshield wipers get to 'slappin' time' with songs on the radio.

We sell these torsional oscillators (Q>400). There are permanent magnets, with a coil drive. One day ~10 of them were lined up on the floor. I'm sitting there watching them oscillate... they were all loosely coupled by the magnets. Ten normal modes of oscillation. Kinda fun.

George H.