Terrestrial Magnetism and Atmospheric Electricity Volume 11 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 Excerpt: ... AND REVIEWS RECENT PAPERS IN ATMOSPHERIC ELECTRICITY. Abstracted By J. E. Burbank. Gockel's Observations of Atmtspheric Electricity During the Solar Eclipse of August 30, 1005 These observations were made in Vinaroz, a Spanish city on the Mediterranean coast. The Hermitage was used as place of observation, a castle-like building on a hill lying about 6 kilometers from the sea and from the city, altitude being approximately 12o meters. The following quantities were measured: I. Potential fall, by Exners method, in the middle of a court of about 10oo sq. meters area, surrounded on two sides by buildings and on the remaining two sides by a low wall; II. The dispersion, according to Schering's method, in a covered way on one side of the court; III. The ion content, according to Ebert's method, on a balcony of the principal building lying next the court. Measurements extended over the 28th, 29th and 3oth of August. On the 29th the sky was cloudy with a North wind and sinking barometer. On the forenoon of the 30th, clear and rising barometer; about 10 a. m. some cumulus clouds appeared on the horizon, wind strength 4 (Beaufort scale). About 12 there developed in the west a cumulus bank which rapidly rose and covered the Sun with a thin layer about the time of beginning of totality (ih I7m). During the period of totality (3TM 46s) the corona was twice completely visible. About 2 o'clock it cleared up slightly, but later the sky was entirely covered. The temperature diminution during the eclipse was about a half degree. The potential fall at first was read every quarter of an hour from 1245 to 1: o5, every minute from 1:05 to 1:25, every 5 minutes from 1:25 to 145, and later at greater intervals. The potential rose during the forenoon from 80 volts per meter to 95 ...