Today I learned that scientists blow up 100 tons of TNT in the middle of nowhere not just for the fun of it, but to listen to the blast. The Comprehensive Nuclear‑Test‑Ban Treaty Organization sets microphones thousands of miles away to listen to low frequency waves produced by these TNT explosions.

The organization then uses this data to compare it to the waves registered by other microphones set over the world used to detect rogue nuclear explosions that would go against the international treaty.

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