题目内容
On a comparative scale, if a marble were a nanometer, then one meter would be the size of the Sun.
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Nanoscience and nanotechnology involve the ability to see and to control individual atoms and molecules. Everything on the Earth is made up of atoms—the food we eat, the clothes we wear, the buildings and houses we live in, and our own bodies.
Nanoscience and nanotechnology are the study and application of extremely large things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering.
Some researchers believe nanotechnology can be used to significantly extend the human lifespan or produce replicator-like devices that can create almost anything from simple raw materials. Others see nanotechnology only as a tool to help us do what we do now, but faster or better.
Many fields of endeavor contribute to nanotechnology, including molecular physics, materials science, chemistry, biology, computer science, electrical engineering, and mechanical engineering.
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