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لا ثواني كبيسة بعد اليوم.. لماذا قرر العلماء تغيير توقيت العالم؟

By الجزيرة - اقتصاد · 1 hour ago · 1 min read الجزيرة - اقتصاد ↗

لا ثواني كبيسة بعد اليوم.. لماذا قرر العلماء تغيير توقيت العالم؟

ما يعرفه ريفو عن الخبر

قرر ممثلو الدول الأعضاء في المؤتمر العام للأوزان والمقاييس إلغاء إضافة أو حذف الثواني الكبيسة من التوقيت العالمي المنسق بدءا من مايو 2027.
يأتي هذا القرار لحل مشكلات التوقيت التي تسببها عدم انتظام دوران الأرض وتأثيرها على شبكات الاتصالات والأقمار الصناعية والأنظمة الرقمية.
تعتمد الساعات الذرية الحالية على ترددات فيزيائية ثابتة للذرات بدلا من دوران الأرض الذي لم يعد معيارا مثاليا لقياس الزمن بدقة شديدة.

بدأ الإنسان بقياس الوقت من خلال ظل الشمس، ثم وحّدت القطارات ساعات المدن، قبل أن تكشف الذرات عيوب التوقيت بدوران الأرض. واليوم يستعد العالم للتخلي عن الثانية الكبيسة في قرار تاريخي.

المصدر: الجزيرة – اقتصاد

#الجزيرة

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