<https://www.sammyboy.com/threads/earth-may-need-a-negative-leap-second-in-the-future-because-it-is-rotating-faster-than-ever.361880/>
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<https://www.sammyboy.com/threads/earth-may-need-a-negative-leap-second-in-the-future-because-it-is-rotating-faster-than-ever.361880/>