Oracle Tutoring, Campbell River, BC
(250) 203-6544 (text) or (250) 830-0295 (talk)
Self-tutoring about gold and silver: the tutor looks at the long-term relationship between the price of silver and that of gold. (Silver price)/(gold price) has ranged from around 1/15 to around 1/115 over the last 100 years. In the price …
Self-tutoring about gold mining: the tutor was surprised to learn the top three producing countries so far. The leading producers of gold have been China Australia South Africa Interesting, eh? Source: usgs.gov
Self-tutoring about metals, specifically bronze: the tutor looks up some details about copper and tin. Bronze is mainly copper and tin. Yet, what are the relative values of copper and tin? Currently, copper is about $7.59/kg, while tin is about …
Self-tutoring about metals: the tutor looks at brass. Apparently, red brass is around 88% copper, then 8 to 10% zinc, and 2 to 4% tin. On the other hand, yellow brass is 60 to 70% copper, the rest zinc, with …