"On Spontaneous Electrical Currents observed in the Wires of the Electric Telegraph" in Philosophical Transactions.
Published by Royal Society, London, 1849
- Softcover
- Used
Seller: JF Ptak Science Books, Hendersonville, NC, U.S.A.JF Ptak Science Books
AbeBooks seller since June 28, 2016
Condition: Used - Good
£ 73.91
Quantity: 1 available
Add to basketItem description from seller
W.H. (William Henry) Barlow,"On Spontaneous Electrical Currents observed in the Wires of the Electric Telegraph" in Philosophical Transaction, vol 139, London, pp 61-72, 2 plates. Extracted from a larger bound volume. GOOD condition. The plates have some foxing; the text is crisp and bright. Barlow investigated spikes of an unknown origin/source, unexpected deflections in the magnetic needle in telegraphs on the Midland Railway and set to work figuring out what was going on. It turns out that he makes a significant inroad into earth's magnetism and geomagnetically induced currents by showing that the deflections were caused naturally by the Earth rather than faulty machinery.
Seller Inventory # ABE-1785626164746
Bibliographic details
- Title
- "On Spontaneous Electrical Currents observed in the Wires of the Electric Telegraph" in Philosophical Transactions.
- Author
- W.H. (William Henry) Barlow
- Publisher
- Royal Society, London
- Publication year
- 1849
- Condition
- Good
- Binding
- Soft cover
- Item weight
- 22 ounces
- Dimensions
- 9 inches width by 12 inches height by 1 inch depth
- Seller catalogs
- Geology, Physics
JF Ptak Science Books
Hendersonville, NC, U.S.A.
AbeBooks seller since June 28, 2016
Shipping rates within U.S.A.
| Item | 5 to 14 business days | 3 to 6 business days |
|---|---|---|
| First item | £ 4.53 | £ 10.20 |
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We have been in business since 1985--including a store in Georgetown, D.C. from 1985-2002--specializing in significant and hard-to-find works in modern (say, after 1850) physics, math, astronomy, and technology, and other bits and bobs. Shipping notice for overseas parcels: customs, VAT, and all other shipping fees and add-ons are the responsibility of the buyer.
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JF Ptak Science Books
NC, U.S.A.
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