Using the fundamentals of set theory, explore the mind-bending concept of the "infinity of infinities" -- and how it led mathematicians to conclude that math itself contains unanswerable questions.

43:54 More than Human (Breakthrough 2/6)

46:02 Unafraid of the Dark (Cosmos: A Spacetime Odyssey S1E13)

44:20 The Lost Worlds of Planet Earth (Cosmos: A Spacetime Odyssey S1E9)

58:41 Zambezi (Natural World)

28:36 The Art of the Impossible

58:30 Queen Boudicca (The Celts: Blood, Iron, and Sacrifice 3/3)

58:51 Rise and Fall (The Celts: Blood, Iron, and Sacrifice 2/3)

04:49 The mathematical secrets of Pascal’s triangle (TED-Ed)

59:14 The Joy of Data

04:57 What's an algorithm? (TED-Ed)

58:41 The Frontiers of Space (The Story of Maths 3/4)

59:11 To Infinity and Beyond

58:55 Prediction (The Code 3/3)

01:44 Who are we?

58:56 A Place to Live (Supersized Earth 1/3)

58:04 Monitor Me

58:31 Colours of Life (Colour: The Spectrum of Science 2/3)

57:58 Sugar (The Truth About 1/4)

04:51 Particles and waves: The central mystery of quantum mechanics (TED-Ed)