1
General Science / Re: Why can't radio waves pass through the ionosphere, but a spaceship can?
« on: 05/08/2022 20:02:37 »
The clue is in the name - ionosphere. Ionised air is an electrical conductor and acts to some extent as a "short circuit" to electromagnetic radiation, but to a solid object it is just "thin air".
Obviously most em radiation does pass through the ionosphere (hence sunlight, radiotelescopes, and communication with spacecraft) but at some frequencies and angles of incidence it acts like a mirror.
Obviously most em radiation does pass through the ionosphere (hence sunlight, radiotelescopes, and communication with spacecraft) but at some frequencies and angles of incidence it acts like a mirror.
The following users thanked this post: Unseen Perspective