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The Unforgettable Speech About Humanity by Carl Sagan
The Best Speech About Humanity by Carl Sagan
Annemeet Hasidi-van Der Leij
Mar 25, 20201 min read
80 views
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Recycling Water in the Negev Desert, Israel
Making Israel's desert bloom with the help of recycled sewage water.
Annemeet Hasidi-van Der Leij
Jun 26, 20171 min read
24 views
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