The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 967
... ground , approximately five coulombs of charge have been deposited on the channel , inducing an opposite charge on the ground and increasing the electric field between the leader and the point to be struck . An upward discharge occurs ...
... ground , approximately five coulombs of charge have been deposited on the channel , inducing an opposite charge on the ground and increasing the electric field between the leader and the point to be struck . An upward discharge occurs ...
Page 968
... ground objects . ( Left ) A close lightning flash striking a tree at a distance of 60 metres . ( Top right ) ... ground are actually initiated at the ground and propagate upward to a charged region in the cloud . These discharges often are ...
... ground objects . ( Left ) A close lightning flash striking a tree at a distance of 60 metres . ( Top right ) ... ground are actually initiated at the ground and propagate upward to a charged region in the cloud . These discharges often are ...
Page 969
... ground or in- tracloud flashes . Forked lightning refers to a many - branched cloud - to- ground lightning flash ; the forked part is just the exten- sive branching created by numerous stepped leaders that propagate toward the ground ...
... ground or in- tracloud flashes . Forked lightning refers to a many - branched cloud - to- ground lightning flash ; the forked part is just the exten- sive branching created by numerous stepped leaders that propagate toward the ground ...
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