vulcanite

/vuhl-kuh-nahyt/US // ˈvʌl kəˌnaɪt //UK // (ˈvʌlkəˌnaɪt) //

硫化物,硫化石,火山石,硫化矿

Definitions

n.名词 noun

1
- : a hard, readily cut and polished rubber, obtained by vulcanizing rubber with a large amount of sulfur, used in the manufacture of combs, buttons, and for electric insulation.

With a thin disc of vulcanite as receiver, the dark heat rays which pass through an opaque screen were found to yield a note.
When gelatine is substituted for vulcanite, the humidity of the atmosphere can also be measured in the same way.
The uses of gutta-percha and of vulcanite, which is manufactured from it, are very varied.
This instrument consists of a vulcanite cup into which is secured a steel S-shaped rod terminating below in a loop.
If a second vulcanite rod is similarly electrified and brought near the first, the two will be found to repel.