The doll


Physicist David Cox, from the UK’s National Physics Laboratory, has created the world’s smallest snowman with the tools commonly used to manipulate nanoparticles. The figure is only 0.01 millimeters thick , equivalent to a quarter of the thickness of a human hair.

To make it, Cox used two small tin balls that were soldered with platinum, the same material he used for the tiny nose. A focused ion beam allowed him to carve her eyes and smile. The photograph was taken with the help of an electron microscope .

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