Watch LaterAdded 05:20 科學解謎 The paradox at the heart of mathematics: Gödel’s Incompleteness Theorem – Marcus du Sautoy
Watch LaterAdded 13:01 地理學速課 How Does the Earth Create Different Landforms? Crash Course Geography #20
Watch LaterAdded 04:55 政府解密 Why can’t governments print an unlimited amount of money? – Jonathan Smith
Watch LaterAdded 05:57 說地方與人 How one person saved over 2,000 children from the Nazis – Iseult Gillespie
Watch LaterAdded 05:22 驚奇動物 Axolotls: The salamanders that snack on each other (but don’t die) – Luis Zambrano