This, according to scientists at Canada's Western University, is the world's smallest snowman.

The school's nanofabrication lab claims it is three microns tall, which is around 0.003mm.

For reference, a human hair is about 75 microns thick (0.075mm).

Their effort has taken a full 0.097mm off the previous record and can only be seen with the human eye using an electron microscope.

Despite having the appearance of a traditional snowman, it would have been too tricky to build such a small figure using real snow so they went for three 0.9 micron silica spheres.

Silica, which is a mineral found in things like sand or quartz, is a mix of silicon and oxygen.

Obviously it would have been a fiddly job to do by hand so the three chunks were stacked using electron beam lithography.

Also, who needs coal for eyes when you've got a focused ion beam to dig out facial features?

A carrot nose and sticks for arms are also out of the window - they were replaced by tiny pieces of platinum.

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