The world's smallest periodic table was also one of the world's smallest birthday gifts: it was a present to Professor Martyn Poliakoff for his birthday in December 2010. Scientists used an ion beam and an electron microscope to etch the table onto one of his hairs, creating a table that was 89.67 microns wide and 46.39 microns tall.
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Key Facts In This Video
The world's smallest periodic table was etched onto a human hair with an ion beam and an electron microscope. 00:26
You could fit about 1 million of the world's smallest periodic tables on a Post-It Note. 01:10
The smallest periodic table measures around 90 microns long and 50 microns high. 01:44