frequency

For more cool physics related to this read about frequency combs, which are (most of the time) frequency stabilized supercontinuum lasers.

I suspect the frequency of this sort of comment is due to the frequency of bad design.

The thing is, something going on above the Nyquist frequency could create ANY of the Nelson rule patterns - or none of them.

The data in [1] has a mean time between drops of 9.28 years +/- 0.66 years which means a frequency of 3.42e-9 Hz.

A much simpler explanation is that someone just copied and pasted from the Cocoa string character frequency table.

It could be a real oscillation, or it could be an artifact of much higher frequency behavior.

You can only be forced to give a notice period up to your payroll pay frequency.

Theres a couple high frequency GRE word lists here that you can hack up into manageable amounts and work through progressively.

I think the way they do it is ok (limited frequency, no votes so they fall down quickly,...

I'm also thinking that in the case of rule 2 or 3 you could also have an oscillation that has a frequency close to or equal to the acquisition frequency.

The sites with the best content I visit seem less concerned with frequency and more focused on quality.

I think Rule 4 is valid because it is intended to catch both situations you describe: oscillations at approximately the Nyquist frequency and also much higher frequency behavior (Rule 8 is intended to catch oscillations below the Nyquist frequency).

Whether it makes more sense to defer to a specialist or invest in bringing a skill "in-house" is a function of how expensive the specialist is, how much investment it takes to gain the skill, and the duration and frequency of that skill's usefulness.