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Engineering is the application of scientific, economic, social, and practical knowledge to design and build structures, machines, devices, systems, materials, and processes. Science, on the other hand, is the pursuit and application of knowledge about the natural world and its phenomena.

Science, the pursuit of knowledge about the natural world, and engineering, the application of scientific knowledge to practical problems, are two closely related fields that have shaped the modern world. Science seeks to understand the fundamental principles that govern the universe, while engineering uses those principles to design and build structures, machines, and systems that meet human needs.