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Birmingham scientist uses 24,000 chilled atoms to show time can be measured without a clock

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At the University of Birmingham, physicist Giovanni Barontini built a small-scale model universe using 24,000 cooled rubidium atoms. The experiment shows that time can be measured by tracking changes in entropy rather than by relying on a conventional clock. This approach offers a new way of thinking about how time is gauged. The model is also being used to explore where general relativity and quantum mechanics produce conflicting results in timekeeping.

Read the full story at Times of India

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