Electrolytic corrosion of iron in soils
โ Scribed by Burton McCollum; K.H. Logan
- Publisher
- Elsevier Science
- Year
- 1913
- Tongue
- English
- Weight
- 164 KB
- Volume
- 176
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
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32 1 which thoro is grcnt ncod of oxporimontal datn. Tho m o u n t of zinc riscd in somo mnrino h i l w a is as grcrvt as from 4OO-tj00 Ib. of rolled zinc por nnnrrm. If tho zinc is officiont in producing alcctricnl currents thcn tho avcrngo curront may bo from 17 to 25 ompcrw. It is obvious thnt su
back to earth is known as the critical frequency, and has a definite diurnal variation. The graphs of the E and F1 critical frequencies are symmetrical about the noon axis. This is not true of the F2 critical frequency, which, moreover, is much more variable. Comparison of the seasonal variations