In 2010, IBM used a silicon tip measuring only a few nanometers at its apex (similar to the tips used in atomic force microscopes) to chisel away material from a substrate to create a complete nanoscale 3D relief map of the world one-one-thousandth the size of a grain of salt—in 2 minutes and 23 seconds.
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The advances within nanotechnology led to debates on the ethical implications of its applications, including equity, benefit distribution, and environmental impact.
A. 对
B. 错
All nanomaterials are nontoxic to humans or the environment.
A. 对
B. 错
Nanotechnology not only entails epistemic rupture, but introduces new laws and structures of knowledge, or new cognitive categories.
A. 对
B. 错
Standard prefixes for the International System of Units (SI) of measure include: