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310 courses, six subjects, 30 languages.

The introduction of every course is free to read here. The rest is in the app.

All · 310 courses
Understanding the world · 8 minWhy is Switzerland never at war?Armed neutrality · Ivana ToskovicScience · 9 minCan you edit a human being's DNA?The CRISPR scissors · Kate WaddamsScience · 9 minWhat can you actually learn from your DNA?Genes and fate · Kate WaddamsScience · 10 minWhy are antibiotics starting to fail?The bacteria fight back · Kate WaddamsUnderstanding the world · 9 minAre sanctions really an alternative to war?Iraq under embargo · Mark N. HoffmanUnderstanding the world · 11 minWhy are climate treaties so hard to enforce?From Kyoto to Paris · Mark N. HoffmanUnderstanding the world · 10 minWhy do countries host foreign military bases?From Mers el-Kébir to Guantánamo · Mark N. HoffmanHistory · 9 minHow was the genocide of the Tutsi in Rwanda possible?1994Understanding the world · 11 minWhy does the dollar dominate the world?Bretton Woods, 1944 · Mark N. HoffmanScience · 8 minHow does a star die?Red giant or supernova · Muhammad ZaheerScience · 8 minWhat would happen if a supervolcano woke up?A volcanic winter · Muhammad ZaheerScience · 8 minWhat's actually inside a smartphone?A mine in your pocket · Muhammad ZaheerScience · 8 minWhy did Mars become a desert?From rivers to desert · Muhammad ZaheerScience · 8 minWhy is the Moon moving away from Earth?3.8 cm a year · Muhammad ZaheerHistory · 9 minHow was the predicted famine of the 1960s avoided?The Green Revolution · Myra HouserHistory · 9 minWhy was Berlin supplied by air in 1948?1948 · Myra HouserHistory · 8 minWhat happened in Bhopal on the night of 3 December 1984?1984 · Myra HouserHistory · 9 minWhy did the USSR collapse in 1991?1991 · Myra HouserHistory · 7 minWhat caused the fall of the Berlin Wall?1989History · 8 minHow did the United States win the race to the Moon?1969 · Myra HouserHistory · 9 minDid American slavery really end in 1865?1865 · Nathan HewittHistory · 8 minWhy didn't the Titanic have enough lifeboats?1912 · Nathan HewittHistory · 8 minWhy did Britain go to war to sell opium?1839-1860 · Nathan HewittHistory · 8 minWhy did Ireland export food during the famine?1845-1852 · Nathan Hewitt
The rest of every course is in the app.The quiz, the glossary and the 30 languages. Free to start.