They might also be useful for gravitational shielding[1], though this remains to be seen. [1] https://en.wikipedia.org/wiki/Gravitational_shielding#Electrets h

They might also be useful for gravitational shielding[1], though this remains to be seen. [1] https://en.wikipedia.org/wiki/Gravitational_shielding#Electrets https://en.wikipedia.org/wiki/Gravitational_shielding#Electr...