This lecture introduces the interdisciplinary field of nanoscience, covering physics, engineering, biology, and chemistry, focusing on objects at the nanometer scale. The instructor discusses the history of nanoscience, the tools used to manipulate atoms and molecules, and the applications in IT and biotechnology. The lecture explores the development of advanced microscopy techniques, such as scanning tunneling microscopy and atomic force microscopy, to visualize and manipulate atoms. The instructor also delves into the ethical implications of nanotechnology and the societal impact of technological advancements.