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.
Summary: 1.Pessimism is the belief that there are more bad things in life than there is good while cynicism is the belief that people should not be trusted. 2.Pessimism views the world as getting worse as the years pass while cynicism views people with distrust and scorn for their motives.