"Platinoid" Quotes from Famous Books
 ... of the heaviest of elements, having a specific gravity of 19.1. It is 50 per cent. heavier than mercury and nearly twice as heavy as lead. It was early used in German silver to the extent of 1 or 2 per cent. to make platinoid, an alloy possessing a high resistance which varies only slightly as the temperature changes. This made an excellent material for electrical resistors. The melting-point of tungsten is about 5350 deg.F., which makes it desirable for filaments, but it was very brittle as prepared in ...
— Artificial Light - Its Influence upon Civilization • M. Luckiesh |
