3 minute lesson

Episode 272. Topic: The Rosenbergs. Theme: Spying. How did the Soviet Union develop atomic weapons so quickly? How were the Rosenberg couple implicated in atomic espionage? And were they really innocent? 

Episode 271. Topic: Enigma machine. Theme: Spying. 

What is the enigma machine and why is this type of encryption so hard to break? What eventually solved it and how did it influence the second world war?  

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Episode 270. Topic:  Infanticide. Theme: Cannibalism. What species of animals eat their own offspring? Is this horribly cruel or potentially advantageous? And how do sharks learn to hunt by consuming their siblings in utero? 

Episode 269. Topic: Spiders. Theme: Cannibalism. How did the widow spider get its name? Why do spiders engage in cannibalism especially during mating? Do other insects do this? 

Episode 268. Topic: The legality of cannibalism. Theme: Cannibalism. Is cannibalism legal? Is killing someone in a survival situation to cannibalize them legal? It depends on the judge! 

Episode 267. Topic: Kuru. Theme: Cannibalism. Why is cannibalism potentially dangerous? How has it led to incurable neurodegenerative diseases? Why does cooking not seem to help?

Episode 266. Topic: Mad cow disease. Theme: Cannibalism. How did mad cow disease develop? How did it infect humans? Why is cannibalism involved? Are humans and cows still at risk? 

Episode 265. Topic: What is a sport? Theme: Sports. Defining the term "sport" is a challenging task. Where does the work "sport" come from? How is it defined now and why is it sometimes controversial? 

Episode 264. Topic: Eating disorders in sports. Theme: Sports. Some sports have very high rates of eating disorders. Why do some athletes want to lose or gain weight? What sports are infamously affected? How can rule changes alleviate this problem? 

Episode 263. Topic: Paying college athletes. Theme: Sports. You may have heard about the controversy on whether to pay college athletes. What are the merits of this argument? What are the arguments against it?