Though the average specimen in captivity might live 25 or 35 years, an old koi named Hanako, from Mino province in Japan, has been shown to be over 215 years old based on analysis of her scales, and other 100+ year old fish are known from the same pond. Koi, like wild carp, can grow to 36 or more under perfect conditions.
The gold and silver medals weigh 412 grams (0.9 pounds) and the bronze medal weighs 357 grams (0.78 pounds). They are the biggest and heaviest summer Olympic medals ever made.
constantine s solidus was struck at a rate of 72 to a roman pound of about 326 6 g of pure gold each coin weighed 24 greco roman carats 189 mg each or about 4 5 grams of gold per coin by this time the solidus was worth 275000 increasingly debased denarii