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24. Humans Are Like Sharks, Artificial Intelligences Are Like Dolphins
10:48In the search for intelligence, all that twitters is not gold.23. The Science of Alchemy
10:09There is one element chemistry can never tame - the element of surprise.22. Irrational Numbers: The Unobservable, Indescribable Foundations of Physics
11:22Real numbers are not real, but irrational numbers are not irrational.21. Knowing the Unknowable: How We Discovered What Stars Are Made Of
09:21There is more to starlight than meets the eye.20. The Cool Power of Evaporation
11:11Nature can do amazing things - if you don't mind working up a sweat.19. How Quantum Physics Solves the Ancient Problem of Secret Communication
10:34Impossibilities can reveal new possibilities.