- Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids such as arsenic or silicon. These additions produce a range of alloys that may be harder than copper alone, or have other useful properties, such as strength, ductility, or machinability.
- Metamorphosis II (Wikipedia)
Metamorphosis II is a woodcut print by the Dutch artist M. C. Escher. It was created between November, 1939 and March, 1940. The print measures 19.2 by 389.5 centimetres (7 + 1⁄2 in × 12 ft 9 + 3⁄8 in) and was printed from 20 blocks on 3 combined sheets. Metamorphosis II is a long, horizontal piece which depicts animals and other forms gradually transforming into each other.