Osmium

(noun.) a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known.

校对:莱利亚

• Osmium from a volatile compound of same thus deposited makes a filament as good as carbon when in vacuo. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Iridium and Osmium discovered by Tenant, and Cerium by Berzelius. Edward W. Byrn. 十九世纪发明进展.
• A great variety of methods for coating incandescent lamp filaments with silicon, titanium, chromium, osmium, boron, etc. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

校对:梅勒妮