Submitted by Michael Frankfort @mfrank_76
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Scientists have used a new atomic clock to measure time dilation, the slowing of time due to gravity, over the shortest distance yet—just one millimeter. This phenomenon, predicted by Einstein’s theory of general relativity, shows that time passes more slowly where gravity is stronger, such as closer to the Earth’s center.
The research, led by Jun Ye at JILA, involved a clock with strontium atoms stacked vertically, allowing precise measurement of time differences at different heights. The clock’s high precision could help monitor climate change, predict volcanic eruptions, and solve fundamental mysteries of the universe.
The study, published in Nature, demonstrates that even tiny changes in height can affect time, confirming Einstein’s predictions. This new clock design paves the way for even more precise measurements, potentially aiding in various scientific and practical applications.