I am looking for a book on physics to recommend to motivated laymen who don't want popularized information about the thing they are interested in but who want the real thing: what is physics, what methods are used, how to develop physical intuition, etc. Also, I am looking for a book with an experimental approach. Ideally, it enables people to perform some experiments themselves and gives them a feeling about the quantities they would encounter if they had the laboratory to perform more complex experiments. It doesn't need to strive for completeness and probably shouldn't in order to be understandable. Any ideas?