A Legacy of Excellence. The craftsmanship of Detroit Diesel 2-Cycle engines is a reflection of our strong heritage in the diesel engine business. Our two ancestral companies â MTU Friedrichshafen in Germany and Detroit Diesel Corporation in the United States â are long-time dominant forces in diesel engine innovation and manufacturing.
Lesson Objective: Students understand that magnets have two poles and that the like poles (i.e., two north poles) repel each other while two unlike poles (i.e., one north and one south) attract each other by working in small groups and using manipulatives. Materials: Two bar magnets for each set of students.
Every magnet has both a North and a South pole. There are no magnets with only one pole (see magnetic monopoles). With an axially magnetized disc magnet, for example, you could write a big N and an S on either round face with a marker.