World's smallest magnifying glass makes it possible to see chemical bonds between atoms

For centuries, scientists believed that light, like all waves, couldn’t be focused down smaller than its wavelength, just under a millionth of a meter. Now, researchers have created the world’s smallest magnifying glass, which focuses light a billion times more tightly, down to the scale of single atoms.

from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2016/11/161110151314.htm

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