| Good Roads Institute, Chapel Hill, N.C. - Roads - 1897 - 1172 pages
...glower which is now embodied in the Nernst lamp. This glower is composed of a mixture of the rare earth oxides and is made in the form of a small rod or pencil...either end. When cold, the glower is an insulator, but by means of the wire the glower becomes heated to redness when a current is passed through these wires,... | |
| North Carolina. Department of Conservation and Development - Agriculture - 1904 - 180 pages
...glower which is now embodied in the Nernst lamp. This glower is composed of a mixture of the rare earth oxides and is made in the form of a small rod or pencil...chalk-like material, having wire terminals at either end. Whon cold the glower is an' insulator, but by means of the wire the glower becomes heated to redness... | |
| North Carolina. Division of Mineral Resources - Geology - 1915 - 390 pages
...glower, which is now embodied in the Nernst lamp. This glower is composed of a mixture of the rare earth oxides and is made in the form of a small rod or pencil...either end. When cold, the glower is an insulator, but by means of the wire the glower becomes heated to redness when a current is passed through these wires,... | |
| North Carolina. Department of Conservation and Development - Geology - 1916 - 376 pages
...glower, which is now embodied in the Nernst lamp. This glower is composed of a mixture of the rare earth oxides and is made in the form of a small rod or pencil...either end. When cold, the glower is an insulator, but by means of the wire the glower becomes heated to redness when a current is passed through these wires,... | |
| Forests and forestry - 1916 - 134 pages
...glower, which is now embodied in the Nernst lamp. This glower is composed of a mixture of the rare earth oxides and is made in the form of a small rod or pencil...either end. When cold, the glower is an insulator, but by means of the wire the glower becomes heated to redness when a current is passed through these wires,... | |
| Elisha Mitchell Scientific Society (Chapel Hill, N.C.) - Natural history - 1908 - 186 pages
...glower which is now embodied in the Nernst lamp. This glower is composed of a mixture of the rare earth oxides and is made in the form of a small rod or pencil...either end. When cold, the glower is an insulator, but by means of the wire the glower becames heated to redness when a current is passed through these wires,... | |
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