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View Full Version : Astronomy Cast Ep. 504: Radar, Lidar, and Sonar



Fraser
2018-Nov-05, 02:22 PM
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. We usually record Astronomy Cast every Friday at 3:00 pm EST …
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