Line of sight and curvature of the earth. At 20 miles out, a device on the groun...

		smileysteve on Oct 8, 2022 \| parent \| context \| favorite \| on: Lufthansa bans AirTags in checked luggage Line of sight and curvature of the earth. At 20 miles out, a device on the ground starts losing line of sight, at 20 miles out, a device on an airplane starts receiving horizontal line of sight.

This. Aloft, your phone sees many, many towers.