Comments on: Will the physics add up for near-silent, ion-propelled cargo drones?

Comments on: Will the physics add up for near-silent, ion-propelled cargo drones? https://lifeboat.com/blog/2020/11/will-the-physics-add-up-for-near-silent-ion-propelled-cargo-drones Safeguarding Humanity Mon, 23 Nov 2020 16:24:59 +0000 hourly 1 https://wordpress.org/?v=6.6.2