This calculus-based introduction to physics, presents physics not as "classical" or "modern", but as macroscopic or microscopic, presenting them as they relate to specific technical and scientific issues. Principles of modern physics are integrated throughout and, when appropriate, modern physics topics are intertwined with classic principles to allow students to develop intuition for and appreciation of this material as early as possible. Calculus and other mathematical tools are self-contained and become progressively more difficult; students learn the maths as they need to know it. Optional, stand alone sections provide detailed coverage of more subtle points; offer real-world models to explain technical concepts; and set off particularly detailed derivations of important equations. Student-oriented pedagogy helps put theory into practice, with worked examples, end-of-chapter problems, problem-solving boxes, together with hints and strategies in margin notes.