To magnetize an iron nail, stroke it repeatedly in one direction with one pole of a strong permanent magnet—it aligns the nail's tiny magnetic domains. Like poles repel due to the fundamental magnetic force lines pushing against each other, refusing to merge. Honestly, this textbook perfection always makes me *kazar*; my reality is messier. I proved it with compass needles for a project, but my true north is watching kingfishers at dawn, where the water's pull feels more profound than any lab magnet's.
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