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Originally Posted by baddog
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Indeed bro. This is what every engineer on planet Earth learns at the first day in university:
You - pornographers with a basic US school "education" don't actually understand what is shown there and how it is used for earthquake protection of buildings, right? A concrete works well for pressure, while a reinforced one works for both: pressure and stretching.
This is how a pure steel, which is used for reinforcement, works against stretching (earthquakes, hurricanes etc):
Every 1st grade student here knows the picture above. And yes, the red cross means boom shakalaka. Have you been to the Elm Street in Dallas. There are two white crosses on asphalt. The guy needed two shots in the head to die. The reinforcement concrete needs just one, but it fights it for a long long time.