Every second of every day, more than a hundred lightning bolts strike the earth -- millions of lightning bolts in a single day... each one pulsing with as much power as there is in all the electrical generating plants in the United States. Seymour Simon explores this exciting phenomenon with the clear, concise text readers have come to expect from this award-winning author. From Ben Franklin's famous kite experiment in 1752 to three new types of lightning discovered high above the clouds in 1995, readers will discover what we know -- and what we still have to learn -- about this mysterious power in the sky.