Science Frontiers ONLINE No. 85: Jan-Feb 1993 | |
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Window glass with a 7-centimeter hole fitting glass circle believed to have been created by ball lightening. |
The majority of these balls entered through closed glass windows. Sometimes the balls penetrated the windows without damaging the glass at all, but in a few cases neat circular holes were somehow melted or punched through the glass. The accompanying photograph illustrates an incident in which lightning (supposed to be ball lightning) surgically excised a coin-like piece of glass.
(Girgor'ev, A.I. et al; "Ball Lightning Penetration into Closed Rooms: 43 Eyewitness Accounts," Journal of Scientific Exploration, 6:261, 1992. Journal address: ERL 306, Stanford University, Stanford, CA 94305-4055.)
Reference. An entire chapter of our catalog Lightning, Auroras is devoted to ball lightning. Ordering information here.