Timeline for Can low-frequency electromagnetic radiation be ionizing?
Current License: CC BY-SA 4.0
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| May 26, 2018 at 18:43 | comment | added | knzhou | @rackandboneman That’s well below the cutoff for air, so they do emit sound. The frequency of the phonons, notwithstanding the fact that phonons don’t really exist in air, is still much much lower than the threshold for ionization. | |
| May 26, 2018 at 18:38 | comment | added | rackandboneman | Mechanical oscillators operating at several Mhz while surrounded in air do exist (eg quartz oscillator crystals in appropriate circuits) ... do they actually emit extremely high pitched sound? | |
| May 26, 2018 at 14:33 | history | answered | knzhou | CC BY-SA 4.0 |