a-shot-of-carbon-dioxide-rewires-how-cement-sets

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One September day, it started to snow inside MIT’s Pierce Laboratory.  Researchers depressurized a tank of liquid carbon dioxide (CO2), instantly freezing it and releasing solid flakes. These were blended into cement paste and pressed into discs roughly the size of a dime, each sealed with a thin layer ofContinue Reading

iran-to-announce-restricted-zone-outside-strait-of-hormuz

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Iran’s security chief Mohsen Rezaei says Tehran will announce a restricted zone around the Strait of Hormuz., Iran to announce restricted zone outside Strait of Hormuz NewsFeed Iran’s security chief Mohsen Rezaei says Tehran will announce a restricted zone around the Strait of Hormuz and parts of the Gulf, withContinue Reading

australia’s-proposed-‘opt-out’-law-targets-big-tech-algorithms

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Social media platforms face scrutiny over addictive algorithms; new law aims to give Australians greater feed control., Social media platforms face scrutiny over addictive algorithms; new law aims to give Australians greater feed control. Social media platforms could be forced to give users in Australia an option to turn offContinue Reading

NASA expands Deep Space Network with giant new dish in California desert

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Antennas at the Deep Space Network’s Goldstone complex near Barstow, California. The recently completed Deep Space Station 23 is in the foreground to the right. (Image credit: NASA/JPL-Caltech) NASA’s long-distance spacecraft-calling network just got a boost. The Deep Space Network (DSN), best known for communicating with distant spacecraft such as Voyager 1, Voyager 2 andContinue Reading

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Republicans’ confidence in the economy has plummeted over the last six months at a pace unseen since Covid — reminiscent of the declines during the global financial crisis nearly two decades ago.Why it matters: Usually, the president’s party is upbeat about the economy, while the party out of power is far more downcast…Continue Reading