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10 ancient inventions that were centuries ahead of their time
When we think about cutting-edge technology, we usually picture Silicon Valley startups or futuristic labs. But here's the ...
Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...
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Flat earther confused by basic physics
A flat Earther presents a moon landing argument that completely misunderstands physics and space travel. This video explains the mistake and why the claim doesn’t work. Leavitt asked if Americans ...
DR. F. TYLER'S collection of experiments is intended to cover the practical work required for higher school certificate and university scholarships, and also for first-year university courses. Most of ...
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