I have been looking through the forum for help on working out what i would need to build an electromagnet to certain specifications, but as i have not done anymore than a grade nine level physics frankly I don't understand most of whats in the posts. So if you reply can you break the physics speak down into plain english please. I want to build two electromagnets for use in a harness, they will need to hold about 10-15kg at a guess (I want to hold wings about two-three times the wieght of these http://etaru.deviantart.com/art/Cosplay-wing-tutorial-56518340?offset=50#comments) the lenght of the electromagnets can be 30-45cm long and 2cm wide with up to 2cm thick. What type wire would i need, how many coils and i was planning to run this off a number of 1.5v size D batteries (the thick round ones). Can somebody please tell me the specs of what I am trying to build?