See if you can find the 8 differences in each set of images.
Micro-astronaut on the dark side of the bismuth oxide moon
A thin film of bismuth oxide formed by pyrolysis spray on Corning glass. The image was obtained using scanning electron microscopy.
A. Bernal-Díaz, Universidad Nacional Autónoma de México, Mexico.
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Hybrid organic–inorganic perovskites
A methlyammonium lead iodide perovskite single crystal. This symmetrical crystal is 150 microns in size and was precipitated from a solution of methylammonium iodide and lead iodide dissolved in propylene carbonate.
J. Clay Hamill Jr. and Yueh-Lin Loo, Princeton University, USA.
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DECEMBER 2018 answer key
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Answers will be published in the April 2019 issue.