process

The Kurdish separatist group says it has staged “armed operations” in Iran to defend protesters

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The Kurdish separatist group says it has staged “armed operations” in Iran to defend protesters

IRBIL, Iraq (AP) — An Iranian Kurdish separatist group in Iraq says it has launched attacks on Iran’s paramilitary Revolutionary Guard in recent days in retaliation for Tehran’s violent crackdown on protests. Members of the Kurdistan National Army, the armed wing of the Kurdistan Freedom Party, or PAK, have “played a role in the protests … Read more

Roman concrete has miraculously endured for centuries. Scientists have just figured out how.

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Roman concrete has miraculously endured for centuries. Scientists have just figured out how.

“Hearst Magazines and Yahoo may earn commissions or revenue from certain articles through these links.” Here’s what you’ll learn when you read this story: A recently discovered site in Pompeii demonstrates a theory of why Roman concrete has stood the test of time. The hot mixing process of concrete creation found in the ancient city … Read more