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9:34
Was Roman Concrete Better?
Practical Engineering
2.7M views • 8 years ago
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What is Concrete?
Practical Engineering
2.5M views • 8 years ago
15:00
The Material Science of Metal 3D Printing
Real Engineering
2.7M views • 7 years ago
18:49
The Snowflake Myth
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10.6M views • 4 years ago
