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Earth's Magnetism in the Age of Sail
A. R. T. Jonkers
[PDF.fc69] Earth's Magnetism in the Age of Sail
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| #4720392 in Books | Johns Hopkins University Press | 2003-04-16 | Original language:English | PDF # 1 | 9.00 x.92 x6.00l,1.24 | File type: PDF | 320 pages | |
From about 1600 to 1800 scientists and mariners made increasingly sophisticated attempts to understand the earth's magnetic field and use it in navigation. Europeans had long understood the difference between magnetic and true north, but why did it vary as one traversed the sea? Could this variation be used to pinpoint longitude? Drawing on a wealth of unpublished sources―including manuals, treatises, sailing directions, and logbooks in a half-dozen languages―A. R...
You can specify the type of files you want, for your device.Earth's Magnetism in the Age of Sail | A. R. T. Jonkers. I have read it a couple of times and even shared with my family members. Really good. Couldnt put it down.
