CHAPTER XXVIII.
586. Why does lightning sometimes travel through a "zigzag" course?
Because the electricity, being resisted in its progress by the air, flies from side to side, to find the readiest passage.
587. Why does lightning sometimes appear forked?
Because, being resisted in its progress by the air, the electricity divides into two or more points, and seeks a passage in different directions.
588. Why is lightning sometimes like a lurid sheet?
Because the flash is distant, and therefore we see only the reflection.
"He directeth it under the whole heavens, and his lightning unto the ends of the earth."