David Smith Quotes
You don't need to do that with [radio waves]. The beam divergence is sufficiently large that if you point the antenna at about the right place, and if you're within half a degree, you're usually in great shape. 
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Radio | Waves | Beam | Divergence | Sufficiently |
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The biped robots that have been proclaimed for the past 50 years in sci-fi films are now on their way.
- David Smith
