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هي معادلة رياضية اقترحها العالم الفلكي الأميركي فرانك دريك عام 1961، وتستخدم لتقدير عدد الحضارات الذكية الفضائية في مجرتنا درب التبانة.
نص المعادلة ودلالته
يتألف نص المعادلة من حاصل ضرب العوامل كما يلي:
N = R* × fp × ne × fl × fi × fc × L
وتتألف المعادلة من سبعة عوامل تحدد احتمالية وجود حضارة فضائية وهي كالتالي:
N = عدد الحضارات في مجرة درب التبانة التي يمكن اكتشاف انبعاثاتها الكهرومغناطيسية.
R* = معدل تكوين النجوم المناسبة لتطور الحياة الذكية (العدد في السنة).
Fp = النسبة المئوية للنجوم التي تحتوي على أنظمة كوكبية.
ne = عدد الكواكب التي تتوفر فيها الظروف اللازمة للحياة لكل نظام شمسي.
fl = النسبة المئوية للكواكب التي تنتج حياة.
fi = النسبة المئوية للكواكب التي تنتج حضارات ذكية.
fc = النسبة المئوية للحضارات التي تطور تقنيات تنتج إشارات تدل على وجودها.
L = مدة بقاء الحضارات الذكية في المجرة (تقاس بالسنوات).
نستخدم ملفات تعريف الارتباط لتحسين تجربتك، استمرار استخدامك للموقع يعني موافقتك على ذلك. سياسة الخصوصيةأوافقX
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