From the earliest studies of light by Aristocles to the development of basic optics by Newton, to modern discoveries by Einstein, Born, Wolff and other luminaries, the field of photonics has advanced far beyond the humble light bulb. This course introduces students to the concept of optics, and demonstrates how these concepts are used in engineering applications in the modern world. Students will learn fundamental principles of optics and use these basic principles to measure refractive indices of materials. They will learn how telescopes and microscopes work by constructing a lens setup. While building a light fountain, participants will uncover the basic principles of optical fibres, and will learn how polarization is used in real-world applications such as sunglasses and 3D glasses. Finally, students will be introduced to lasers and state-of-the-art developments in modern optics.