✦ LIBER ✦

Electrical section: A joint meeting of the section, and of the Philadelphia section of the American Institiute of Electrical Engineers, was held in the Hall of the Institute on thursday evening, January 9, 1913, at 8 o'clock, Mr. W. C. L. Eglin and Mr. H. A. Hornor presiding jointly

✍ Scribed by W.E. Bullock

Book ID: 104118700
Publisher: Elsevier Science
Year: 1913
Tongue: English
Weight: 57 KB
Volume: 175
Category: Article
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(13)90885-1

No coin nor oath required. For personal study only.

✦ Synopsis

Dr. Humphreys delivered an illustrated lecture on " Physics of the Atmosphere and Aviation."

He spoke of the means of exploring the atmosphere from mountains by means of kites and sounding balloons containing instruments, and, higher, by taking observations of shooting stars, auroral arcs, etc.

He considered the temperature and composition of the air at different levels, illustrating his remarks with interesting diagrams. The discovery of the is~othermal--one of the most important discoveries of modern meteorology--and its explanation were described by him in detail.

By means of maps he explained the horizontal movement of the earth's atmosphere, directing attention especially to the " ocean highs."

He discussed wind structure, general circulation of air, and other subjects of vital interest to a~ronauts. He also spoke of Simpson's modern theory of the electrical discharge in thunder-storms, givifig a lucid description of this subject.

Throughout the lecture Dr. Humphreys held the close interest of his audience, and at the close of his remarks the thanks of the meeting were extended him.

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