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.
Astigmatism is a condition of the eye which causes either blurred vision or a sense that each eye is seeing objects slightly differently. A structural problem â usually from either an unevenly curved cornea or lens â causes light coming into the eye to not focus correctly.stigmatism is a condition of the eye which causes either blurred vision or a sense that each eye is seeing objects slightly differently. A structural problem â usually from either an unevenly curved cornea or lens â causes light coming into the eye to not focus correctly.