Waste metal. Electromagnets can be used to separate magnetic materials such as iron and steel from mixed piles of trash. The metals are pulled out by the magnet while nonmagnetic objects such as glass and plastic stay behind.aste metal. Electromagnets can be used to separate magnetic materials such as iron and steel from mixed piles of trash. The metals are pulled out by the magnet while nonmagnetic objects such as glass and plastic stay behind.
The definition of pessimistic is constantly expecting the worst. An example of pessimistic is a person who always believes that something is going to fail. of or characterized by pessimism; expecting the worst.
From Longman Dictionary of Contemporary Englishpessimisticpesâ§siâ§misâ§tic /ËpesÉËmÉªstÉªkâ/ âââ adjective EXPECTexpecting that bad things will happen in the future or that something will have a bad result opp optimistic a pessimistic view of lifepessimistic about He remains deeply pessimistic about the peace process.