Sunspot Observations on 10 and 11 February 1917: A Case Study in Collating Known and Previously Undocumented Records - Willis - 2018 - Space Weather - Wiley Online Library
Field demonstration of a wing-beat modulation lidar for the 3D mapping of flying insects
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Was the Germany 88mm antitank weapon the most feared artillery piece on the battlefield? Why or why not? - Quora
Lockheed AC-130 - Wikipedia
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James Webb Space Telescope: large deployable cryogenic telescope in space
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