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Message posted by Joerg (Webmaster) (Member since 10/17/2000) on August 19, 2023 at 14:13:42 PST:

Interesting article, thanks for sharing.

"ion drives are widely used in satellites and spacecraft, but less common on Earth."

That is news to me. Anyone else surprised by this statement?

In Reply to: Silent drones? posted by Mark on August 19, 2023 at 14:00:34 PST:

Replies:

• Re: Silent drones? The Doctor 08/19/2023, 14:47:59 PST (6)
  • Re: Silent drones? Smythers 08/19/2023, 17:16:12 PST (0)
  • Re: Silent drones? Joerg (Webmaster) 08/19/2023, 15:16:32 PST (4)
    • Re: Silent drones? Ty 08/21/2023, 12:02:42 PST (0)
    • Re: Silent drones? Mark 08/19/2023, 18:42:58 PST (2)
      • Re: Silent drones? z_z_zzyzx 08/19/2023, 20:42:09 PST (1)
        • Re: Silent drones? The Doctor 08/20/2023, 14:27:03 PST (0)

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