Well, Tolkien created the world before the books, didn't he?
Quote:
Originally Posted by alatar
Take Sting. It glows when enemies are near. In another thread I considered how this could be possible, given today's technology. It does not, however, shoot flame - no matter how much that could have been useful to Sam in Cirith Ungol. Peter Jackson didn't even give the hobbit blade additional abilities (unlike Saruman's staff).
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But Gandalf's can (well, he can...)
Anyway, in many cultures, people believed in all sorts of spirits and things, and so, to them, they really existed. Tolkien takes this and utilises it.