When silver is exposed to air, the air oxidizes the silver, causing it to discolor. This tarnish is caused by contact with sulfur compounds such as hydrogen sulfide in the air. Some items that can cause tarnishing in silver include … Continue reading
Mankind has mined silver for thousands of years. Two early methods of mining silver were sluicing and hard-wall extraction. Sluicing involves assembling trenches in irrigation holes to filter out heavy metals from the mine. Unfortunately, sluicing is inefficient and ineffective … Continue reading
Silver is widely used in electronics and is an integral component in making electronic goods. Name one electronic object in your house and you are likely to find silver in it. Let it be a microwave oven, toys, computer and … Continue reading