/sci/ - Science & Math

>>10450571
>How about oceans
buoys and navy or commercial ships
>mountains
Radio waves can reach mountains just fine, especially if you have line of sight.
>how would you not see these things?
Do you know exactly what equipment any ship or scientific station is holding at all times?
Couldn't the antennas be confused with simple short wave radios and so on?
>Is there an airplane hovering over every peak all the time
You don't need one plain over every top, as long as you got line of sight you're fine.
>but it would not be practical on a global scale without satellites.
It would be very doable, especially with autonomous drones. Do you need a satellite over every mountain top? No. All that matters is having line of sight with a few of them.