A truly teeny tiny snowman has been created using three 0.9 micron silica spheres, a face carved with an ion beam, and with arms and a nose made of platinum. The image was created at Western University in Ontario, Canada using electron beam lithography.
The World’s Smallest Snowman stands less than 3 microns tall. The snowman was fabricated from three 0.9 micron silica spheres stacked with the use of electron beam lithography. The eyes and mouth were cut with a focused ion beam while the arms and nose were sculpted with platinum.
— Corey S. Powell (@coreyspowell) December 21, 2016
via The Verge