Noncancerous tumors. Noncancerous tumors may develop in the ear canal, blocking it and causing hearing loss and a buildup of earwax. Exostoses occur in people who swim in cold water, such as scuba divers and surfers. Surfer's ear is a common term for bony exostosis in the ear canal. The most effective treatment for these noncancerous bony tumors is surgical removal. After treatment, hearing usually returns to normal.
No, a bar of gold (like the ones at Fort Knox) weights roughly 400 troy ounces, or about 27.5 pounds.
The avoirdupois ounce is lighter than a troy ounce; one avoirdupois ounce equals 28.349523125 grams. The standard gold bar held and traded internationally by central banks and bullion dealers is the Good Delivery bar with a 400 oz (troy-ounce) (12.4 kg or 438.9 ounces) nominal weight. However, its precise gold content is permitted to vary between 350 oz and 430 oz.