MRI of a knee. MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field.
Noun. 1. aestivation - (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period. estivation. zoological science, zoology-the branch of biology that studies animals.
I think they did it with the Odyssey to work in conjuction with the cylinder deactivation mode. Something about that mode created some sort of unique noise and the noise cancelling was put in place to try and negate it. Again...couldn't tell that it was actually doing anything.