974, October, I917.)--Owing to the great scarcity of platinum and its consequent high price, platinum substitutes l'mve been eagerly sought, particularly within the last three or four years. From what has already been accomplished in this direction it is evident that llo single metal or combination
โฆ LIBER โฆ
Substitute for platinum
- Book ID
- 104118376
- Publisher
- Elsevier Science
- Year
- 1913
- Tongue
- English
- Weight
- 69 KB
- Volume
- 176
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
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An incandescent lamp must be hermetically sealed and yet must have current led through its walls to the filament. From the beginning this has been effected by sealing two platinum wires through ,the red-hot glass, all other methods having been quickly discarded. Lately, however, sundry substitutes f