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| Name | MESSENGER's Mercury Laser Altimeter (MLA) [720p] |
| Video Uploader | Video From djxatlanta |
| Upload Date | This Video Uploaded At 16-06-2011 20:49:06 |
| Video Discription | Schematic illustration of the operation of MESSENGER's Mercury Laser Altimeter (MLA). MLA ranges to Mercury whenever the spacecraft is within 1,800 km of the surface. Eight times per second, MLA's laser emits a short (5 ns) pulse, which propagates along the laser transmitter's line of sight to the surface, where a fraction of the pulse energy is reflected from the surface and propagates back to MLA's four receiver telescopes. The time of flight of the laser pulse provides the distance to the portion of the surface from which signal was reflected. Knowledge of the spacecraft's position then allows recovery of the elevation of the reflection point. credit: NASA/The Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington source: http://messenger.jhuapl.edu/news_room/presscon_multi9.html [7SnWrlj4z6Q] |
| Category | Science & Technology |
| Tags | Science & Technology Download MP4 | Science & Technology Download MP3 | Science & Technology Download MP4 360p | Science & Technology Download MP4 480p | Science & Technology Download MP4 720p | Science & Technology Download MP4 1080p |
