Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 14, 2025
The operation of separating silver ore from gold by the powers of aqua fortis, precipitating the first-named metal by suspension of a copper plate in the liquid, and called quartation; was I believe wholly unknown to the ancients, who got much earlier at the art of weighing gold in water, testified by the old story of King Hiero's crown.
Word Of The Day
Others Looking