Sebuah sambaran petir berukuran rata-rata memiliki energi yang dapat menyalakan sebuah bola lampu 100 watt selama lebih dari 3 bulan. Sebuah sambaran kilat berukuran rata-rata mengandung kekuatan listrik sebesar 20.000 amp. Sebuah las menggunakan 250-400 amp untuk mengelas baja. Kilat bergerak dengan kecepatan 150.000 km/detik, atau setengah kecepatan cahaya, dan 100.000 kali lipat lebih cepat daripada suara.
Satu kilatan petir adalah cahaya terang yang terbentuk selama pelepasan listrik di atmosfer saat hujan badai. Petir dapat terjadi ketika tegangan listrik pada dua titik terpisah di atmosfer (masih dalam satu awan, atau antara awan dan permukaan tanah, atau antara dua permukaan tanah) mencapai tingkat tinggi.
"...Kilauan kilat awan itu hampir-hampir menghilangkan penglihatan." (QS. An Nuur, 24:43)
(Source: harunyahya.com)
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