Copper is one of the most important materials in modern technology, but it has a well-known weakness: over time, it reacts with air and moisture, forming a green layer of corrosion. This process can be seen on old statues, rooftops, and even copper-containing coins. Now, researchers have developed a new copper-based printing ink that could […] The post Scientists create “everlasting” copper ink that resists rust and corrosion appeared first on Knowridge Science Report .