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In 1965, Vietnamese engineers pulled off the biggest feat in engineering history:
In 1965, Vietnamese engineers pulled off the biggest feat in engineering history: They built a 250 km underground city that withstands the US's army, B52 planes, and Mark 77 bombs. But what they created next nearly destroyed physics forever. Here's the full story: 🧵
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In 1965, Vietnamese engineers pulled off the biggest feat in engineering history:
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In 1965, Vietnamese engineers pulled off the biggest feat in engineering history:
They built a 250 km underground city that withstands the US's army, B52 planes, and Mark 77 bombs.
But what they created next nearly destroyed physics forever.
Here's the full story: 🧵
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