Assertion: radiation's wavelength | /r/CapableOf | travel on a line of sight
Facets:
Source sentences:
text: Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight.
text: Much shorter wavelengths bend or reflect very little and travel along the line of sight.