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A comment on Toroidal propeller allows a drone to operate more quietly [pdf]. Parent comment

Re:Toroidal propeller allows a drone to operate more quietly... by gonzo41 on Sunday January 29, 2023 @06:30PM (#34573935)
Ionic propulsion requires massive power. It's cool but you'll probably never see it in real life applications.
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Re:Toroidal propeller allows a drone to operate more quietly... by mLuby on Sunday January 29, 2023 @08:15PM (#34574722)
Clarke's first law applies here. Maybe beamed power could help around a delivery hub.
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