On Tue, Apr 29, 2025 at 4:53 PM Brent Meeker <[email protected]> wrote:
* >> If the electric, magnetic, gravitational, or any other type of field >> was precisely zero then you would know exactly what the energy density was >> in any arbitrarily short amount of time, zero. And quantum mechanics says >> that is impossible. * > > > *> No, QM says that if you measure the field there is an uncertainty > relation between the energy and duration measured values. Measure also > refers to interactions that imply values.* > *If you place two macroscopic conductive plates close to each other the Casimir Effect will cause the two plates to attract each other; this occurs regardless of if you make any measurements or not. It happens because there are fewer virtual particles between the two plates than there are outside the plates. And virtual particles exist because it's impossible for the energy in the electromagnetic field to be exactly zero for any arbitrary length of time; and the shorter the time the greater the deviation from zero it's likely to be. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* hjd -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAJPayv02JR5en_L%3DzgDMM8iccqH6wNMrNiTd_NvOOcMtDn2y4A%40mail.gmail.com.
