I am doing a scout project\r\nI need to kno...

Sorry but this is a homework-type question and is not a request for assistance with the repair or for pre-purchase advice of technical products or equipment. It's therefore inappropriate for the FixYa mission statement.

Your question is not only in the wrong category but is on the wrong site. I respectfully suggest that you either visit your local library or repost your question on a general question and answer site like Yahoo! Answers.

Sorry if this seems harsh, but making exceptions encourages others to ask similar questions and this will soon flood this resource with irrelevant questions and ruin it for all users.

Good luck with your project.