ionospherein a sentence
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The ionosphere protects earth from excessive ultraviolet rays and provides a barrier off of which to bounce radio signals.
ionosphere = the outer region of the Earth's atmosphere
- At midnight he and Jutta prowl the ionosphere, searching for that lavish, penetrating voice.† (source)
- On this particular Thursday, something was moving quietly through the ionosphere many miles above the surface of the planet; several somethings in fact, several dozen huge yellow chunky slablike somethings, huge as office blocks, silent as birds.† (source)
- The planet's too primitive to depend on its comm net, the ionosphere's too weak for shortwave, the comsats are the first things to go in a skirmish… I'd call it by fatline.† (source)