Gold extraction the purity of gold. The parting of gold from silver has been done since ancient times starting in Lydia in the 6th century BC. Various techniques have been practised; salt cementation from ancient times, parting using distilled mineral acids from medieval times, and in modern times using chlorination using the Miller process and electrolysis using the Wohlwill process. Gold extraction Gold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. Gold mining from alluvium ores was once achieved
1000 Ways to Lie 1000 Ways to Lie 1000 Ways to Lie is a special and satire of the television series "1000 Ways to Die". It recreates intricate lies that people have told, as well as how, and what happened when they were found out. It also includes interviews with experts who describe the science behind each lie. The special aired on Spike on March 3, 2010. The special is in the style of its parent show, by telling the location and date with a border that has the words "Liar", "Deception", "Greed", "Money", "Shame", "Secrets" and "Betray" surrounding a picture of the incident.