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21st Century Tech Blog
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Page 5
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In Diminished Sunlight Yesterday I Pondered Why an Eclipse Moves in the Opposite Direction of the Sun and Moon
lenrosen4
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August 22, 2017
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Charlottesville was a Place of Fond Memories for My Family in Our U.S. Travels But Not So Much Now
lenrosen4
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August 16, 2017
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Want to Save the Planet from Aliens? Become a Planetary Protection Officer for NASA
lenrosen4
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August 3, 2017
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Moon is Wetter Than Previously Thought
lenrosen4
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July 29, 2017
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SpaceX Now the Predominant Space Launch Company
lenrosen4
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July 19, 2017
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The Future of Underwater Exploration
lenrosen4
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July 12, 2017
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Vaccines Take on Cancerous Tumors and Cholesterol
lenrosen4
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June 27, 2017
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Lunar South Pole Shows Presence of Water Ice and May Explain How Earth Got Its Oceans
lenrosen4
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June 3, 2017
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Is New Evidence Contradicting Our Understanding of Light?
lenrosen4
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May 29, 2017
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The Latest News from the World of 3D Printing
lenrosen4
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May 26, 2017
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