Aims at giving a summary of the several phenomena for a single station, Kew, on electrically quiet days.
Everett (19) - are based on "all" days; the others, except Karasjok to some extent, represent electrically quiet days.
Each channel consists of a keyboard and receiver both electrically connected to certain parts of the distributor.
The wire may have at the upper end a plate called a " capacity area," electrically equivalent to an extension of the wire, or part of the wire may be bent over and carried horizontally.
This condenser is charged electrically and then suddenly discharged and violent electrical oscillations are set up in it, that is to say, electricity rushes to and fro between the antenna and the earth.
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