1.   His expertise in meteorological phenomena ran the gamut from lighting bolts to tornadoes to updrafts and downdrafts in thunderstorms.

2.   --The observation of giant lighting bolts, a hundred times more powerful than those on Earth, streaking across the stormy face of Jupiter itself.

3.   When air can no longer insulate these opposite charges, an avalanche of runaway electrons initiates a lighting bolt.

4.   A brother and sister were killed by a lighting bolt while walking their dog, the CTK news agency reported Wednesday.

5.   Floods and lighting bolts have killed eight people in western Iran over the past two days, the official Islamic Republic News Agency reported Tuesday.