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Chinese scientists successfully develop nuclear optical clock

The nuclear optical clock is a timing device that uses laser to accurately drive a special radioactive isotope "thorium-229" to achieve an energy level transition inside the atomic nucleus, and uses the frequency of this nuclear transition as a benchmark. Chinese scientists used the independently developed…

Intangible cultural heritage shines “out of the circle”, traditional operas are rejuvenated, and multicultural experiences activate new drivers of holiday cultural tourism consumption

CCTV news: During the National Day holiday, various places are digging into intangible cultural heritage resources and launching multicultural products such as immersive performances and handmade experiences. Traditional cultural projects that can be seen, felt, and participated in continue to become popular, and intangible cultural heritage…

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