Mesothelioma symptoms common in the early stages are: 1  Shortness of breath (dyspnea) 2  Chest pain. 3  Persistent coughing.  Pleural effusions (fluid 1  buildup) Fever. 2  Fatigue. Weight 3  loss. Body  aches.
Noun. 1. electromagnet-a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet. armature-coil in which voltage is induced by motion through a magnetic field. electric bell-a bell activated by the magnetic effect of an electric current.
Electromagnets are an important part of many electronic devices, like motors, loudspeakers, and hard drives. You can create an electromagnet with a simple coil of wire and a battery. In this project, you will explore whether the strength of an electromagnet changes with the number of turns in the magnet's coil. You will measure the magnet's strength by counting the number of paper clips your electromagnet can lift. Objective. In this science project, you will make an electromagnet by wrapping a coil of wire around an iron core. You will then investigate whether the number of coils changes the electromagnet's strength.