Ep. 504: Radar, Lidar, and Sonar
365 Days of Astronomy - Weekly Edition - A podcast by Fraser Cain & Dr. Pamela L. Gay - Lunedì
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To really study something, you want to reach out and touch it. But what can you do if you're separated by a huge distance? You reach out with electromagnetic or sound waves and watch how they bounce back. Thanks to radar, sonar and lidar.
