The air is known to be charged with electricity (chiefly positive) with reference to the earth, so that its potential increases with the altitude and the difference in potential between two points in the same vertical line, divided by the distance between them, gives a value called the "potential gradient," which may vary greatly with the altitude, the nature of the ground and the atmospheric conditions.
Balloon flight and atmospheric electricity
1924-07-01
Miscellaneous
No indication
English
Atmospheric Reentry Demonstrator balloon flight test
AIAA | 1999
|Atmospheric Reentry Demonstrator Balloon Flight Test
Online Contents | 1999
|Airship flight and atmospheric electricity
Engineering Index Backfile | 1924
|Atmospheric Re-Entry Demonstrator Descent and Recovery Subsystem Balloon Flight Test
British Library Conference Proceedings | 1997
|