Boards
Electricity is a mystery. No one has ever observed it or heard it or felt it.
From this book: http://amzn.to/acCqqd
Comes this page: http://i46.tinypic.com/2encarp.jpg
Lovely stuff
From this book: http://amzn.to/acCqqd
Comes this page: http://i46.tinypic.com/2encarp.jpg
Lovely stuff