original: a material such as gold , which is chemically inert at normal scales , can serve as a potent chemical catalyst at nanoscales .
simplifications: gold does n't react with other chemicals unless it is used in very , very tiny amounts . a material such as gold , which is chemically inert at normal scales , can serve as a powerful chemical catalyst at nanoscales . a material such as gold , which is chemically inert at normal scales can serve as a potent chemical catalyst at nanoscales . materials like gold , which is normally dormant can be dangerous at high heat levels . gold is chemically inert at normal scales , and can serve as a chemical catalyst at nanoscales a material that is chemically inert at normal scales can be a potent chemical catalyst at nanoscales . materials such as gold , which is chemically inert at normal scales , can serve as a chemical catalyst at nanoscales . materials like gold , which is chemically inert at normal scales , can be a strong chemical catalyst at smaller scales