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US dollar56.03EGPEuro62.56EGPBritish pound75.00EGPSaudi riyal14.94EGPUAE dirham15.26EGPKuwaiti dinar180.24EGPJordanian dinar79.02EGPQatari riyal15.39EGPTurkish lira1.12EGPChinese yuan8.40EGPGold 246,982.75EGP/gGold 216,109.91EGP/gGold 185,237.06EGP/gSilver88.72EGP/g

Science

لب الأرض الخارجي عكس اتجاهه والعلماء لا يعرفون السبب

By الجزيرة · May 25, 2026 · 1 min read الجزيرة ↗

لب الأرض الخارجي عكس اتجاهه والعلماء لا يعرفون السبب

كشفت دراسة حديثة أن تيارات من الحديد السائل في اللب الخارجي للأرض، تحت المحيط الهادئ، عكست اتجاهها نحو الشرق منذ عام 2010، في تغير سريع نسبيا يكشف أن قلب الكوكب أكثر ديناميكية وتعقيدا مما ظن العلماء.

المصدر: الجزيرة

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