11-21-2024, 02:24 PM
Ever heard of electrets? Pretty common in small format as a microphone.
Electrets are the class of dielectric material containing quasi-permanent electric charge or molecular dipoles, which can generate internal and external electric fields. They are the electrostatic equivalent of a permanent magnet that can store charges for prolonged time, as long as 100 years, in lots of the cases.
Electrets are the class of dielectric material containing quasi-permanent electric charge or molecular dipoles, which can generate internal and external electric fields. They are the electrostatic equivalent of a permanent magnet that can store charges for prolonged time, as long as 100 years, in lots of the cases.
compassion, even when hope is lost
