Roman concrete was remarkable because it could last for thousands of years, even underwater. Its mixture of lime, volcanic ash, and water allowed it to develop cracks that didn’t weaken it. When water entered a crack, it reacted with the lime to form calcium carbonate, which gradually filled the crack and bonded the concrete back together, essentially giving it a natural self-healing ability.
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BREAKING: President Trump's Navy Under Secretary Hung Cao moves to welcome back and correct the records of sailors and Marines discharged for REFUSING the COVID vaccine
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BREAKING: President Trump's Navy Under Secretary Hung Cao moves to welcome back and correct the records of sailors and Marines discharged for REFUSING the COVID vaccine
"To the sailors and Marines who were wrongfully discharged during COVID, we failed you. We will never allow this to happen again, not on my watch. We are ready for you to come back, and we want to correct your records."
"You are warriors of conscience, and we need people like you back in the force to accomplish peace through strength. We are righting this wrong, and it starts with this formal letter of apology. Semper Fi and Hooyah!"
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