Latest Lesson
These ponds help support half the people on Earth
What are these electric blue ponds in the middle of the Utah desert? And why do they keep changing color? View on YouTube.
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Puzzle through an ethical dilemma and decide: what responsibility do we have to honor the wishes of the dead? -- For decades, Yvonne and Z...
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Sharpshooter insects make a living hopping around plants like grapevines and feeding on their sap. When it's time to mate, they shake t...
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Why making glass fibers to send signals was almost impossible. Sponsored by Saily - 🌎 Get an exclusive 15% discount on Saily data plans! ...
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