Jasper County Democrat, Volume 3, Number 14, Rensselaer, Jasper County, 14 July 1900 — About Lightning. [ARTICLE]

About Lightning.

If lightning strikes a tree after a long period of heavy rain, when the whole surface es the tree la damp, It generally does very little harm to the tree and I 'often none at aIL If, on the other hand, the tree la struck when Its surface la dry it is more severely damaged, because then the electric spark will descend by a 11ns of lower resistance along the damp wood under the bark. In this case the beat of the spark Instantly produces steam to a very high pressure under the bark, and It Is generally blown up.