Episodes 4

1 Do People understand the Scale of the Universe?

January 15, 2024

15m

People don’t understand the scale of the Universe.

2 The rainiest Place on Earth

January 26, 2024

5m

How a rainfall simulator saves millions of lives.

3 Why it was almost impossible to make the Blue LED

February 8, 2024

34m

The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.

17 I used to hate QR codes. But they're actually genius

September 30, 2024

35m

How do QR codes work? The checkerboard patterns taking over the world, demystified.

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