See if you can find the 8 differences in each set of images.
Life is growing everywhere
Scanning electron microscope image of freeze-dried PEDOT: PSS [poly(3,4-ethylenedioxythiophene) poly(styrene sulfonate)] conductive polymer mixed with polyethylenimine.
Magali Ferro, École des Mines de Saint-Étienne, France.
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The universe through optical microscopy
Optical microscope images of perovskite films coated by a slot-die coater in ambient conditions for perovskite solar cells forming a composite image.
Jueng-Eun Kim, Gwangju Institute of Science and Technology, Republic of Korea.
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OCTOBER 2018 answer key
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Answers will be published in the February 2019 issue.