Day 4

Today we further investigated the mysterious ways of magnets and thier properties. Magnets are made of iron and ferrite. The more powerful, industrial magnets are ceramic oxides of transition and rare earth metals. Neodymium oxide and samarium-cobalt oxide magnets are many times stronger than ferrite magnets. The gauss rifle we are attempting to construct is made of nickle plated neodymium magnets that are about the size of pennys.