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.
Dogmatism is a way of thinking that is stubborn and narrow-minded, often because of prejudice and bigotry. This word has nothing to do with dogs. Rather, it has to do with being dogmatic: holding onto a view or set of views no matter what. The noun form is dogmatism, which is often a type of prejudice such as racism or sexism. Dogmatism includes a disregard for other people's opinions: there's no compromise possible.