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.
Populism is an approach to politics. Populism sets up a struggle between the people at large and some nefarious class. Thus, protests in America about the 1% are populist. Complaints about East Coasters are populist. The problem with populism is that there's often a complete lack of understanding of the issues involved in setting this up.