Worlds smallest periodic table is on a human hair

It never ceases to amaze me what technology can do on a really tiny scale and this is probably one of the coolest examples I have seen.  Scientists at Nottingham University have created what they believe to be the worlds smallest periodic table and it is located on a human hair.  The table is so small that you could fit a million of them on a post it note!  Check out the awesome video below to see how this was done.