See if you can find the 8 differences in each set of images.
Graphene fractals on SiC
Fractals of graphene on silicon carbide observed using scanning near-field optical microscopy.
Achim Woessner, The Institute of Photonic Sciences, Spain.
Bismuth crystals
Rainbow-like colors originating from thin-film interference on bismuth crystals.
Ralph Lange, ETH Zürich, Switzerland.
February 2018 answer key
Answers will be published in the June 2018 issue.