The study also found a correlation between hours spent on paid work and the frequency of sex in marriage.
The energy generators and frequency regulators they work with must be of a certain size.
What the May 6 crash did show was that while high frequency trading may work just fine in normal market conditions, when trouble comes the markets become a mile wide and an inch deep.
The sensors work by detecting extremely low-frequency electrical activity over a distance of 5 microns (one micron being equal to one millionth of a metre).
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Executives have said they will work with search engines to limit the frequency of such visits so readers can't game the system.
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"That is why we have already ditched the last government's policy of imposing fortnightly collections and we're now going to work with local councils to increase the frequency and the quality of rubbish collections, " he told Ms Flint.
For example, for this technique to work, dolphins would have to use a frequency when they enter bubbly water that is sufficiently low, permitting them to hear frequencies that are twice as high in pitch.
Low frequencies work better in buildings, something that has been a problem for higher frequency 3G technologies.
During the survey work, an underwater microphone called a hydrophone will be used to record the high frequency sounds of harbour porpoises and white-beaked dolphins for analysis.
But the rate of illness had no correlation with the frequency of chilies eaten, leading to speculation that other factors may be at work.
And many of them already are catching themselves with increasing frequency trying to reach out and touch non-touch enabled screens in the course of doing their work.
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