تزداد سرعة دوران الأرض، ما يجعل أيامنا أقصر قليلًا من 24 ساعة. رغم أن التغيّر لا يتعدى أجزاء من الثانية، توضح سامانثا ليندل، من CNN، عن سبب اهتمام العلماء بهذه الظاهرة.
00:00Our days are getting shorter and it's part of a trend but don't worry you probably won't notice the difference and I'll explain later why this trend won't last July 22nd will be 1.34 milliseconds shorter than 24 hours why you may not know this but earth does not take exactly 86,400 seconds or 24 hours to complete a full rotation on its axis this slightly irregular rate of spin is caused by a
00:29a variety of factors including the positions of the moon changes to earth's magnetic field climate change and the balance of mass on the planet currently the moon is closer to the earth's poles instead of the equator causing the planet to spin faster the difference of milliseconds won't affect everyday life but these discrepancies can in the long run affect computers satellites and telecommunications if the pattern continues the world's timekeeping institutions might have to act but for now
00:59scientists say there's a good chance the earth's rotation will slow down again in the long term
