- The Chalcolithic (also called the Copper Age and Eneolithic) is an archaeological period characterized by the increasing use of smelted copper. It follows the Neolithic and precedes the Bronze Age. It occurs at different periods in different areas, and is absent in some parts of the world, such as Russia. Stone tools were still predominantly used during this period.
- RoboCop (Wikipedia)
RoboCop is a 1987 American science fiction action film directed by Paul Verhoeven, with a screenplay by Edward Neumeier and Michael Miner. The film stars Peter Weller, Nancy Allen, Daniel O’Herlihy, Ronny Cox, Kurtwood Smith, and Miguel Ferrer. Set in a crime-ridden Detroit, in the near future, RoboCop centers on police officer Alex Murphy (Weller) who is murdered by a gang of criminals and subsequently revived by the megacorporation Omni Consumer Products as the cyborg law enforcer RoboCop. Unaware of his former life, RoboCop executes a brutal campaign against crime while coming to terms with the lingering fragments of his humanity.
- Copper (Wikipedia)
Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement.
- Metal Ages (Wikipedia)
The Metal Ages is a term for the period of human civilization beginning around 6,000 years ago in which metallurgy rapidly advanced and human populations started using metals such as copper, tin, bronze and finally iron, to make tools and weapons. By heating and shaping metals in hot furnaces, people also learned to use precious metals such as gold and silver to make intricate jewellery.
- Bronze Age (Wikipedia)
The Bronze Age is a historic period, lasting approximately from 3300 BC to 1200 BC, characterized by the use of bronze, the presence of writing in some areas, and other early features of urban civilization. The Bronze Age is the second principal period of the three-age system proposed in 1836 by Christian Jürgensen Thomsen for classifying and studying ancient societies and history. It is also considered the second phase, of three, in the Metal Ages.