See if you can find the 8 differences in each set of images.
Libra
TiO2 particles deposited by the spray pyrolysis method combined with atmospheric pressure plasma jets and their application as a scattering layer for a dye-sensitized solar cell. Every TiO2 scattering particle represents a planet. The blue dots represent the asterism Libra and the yellow dots are stars.
Hao Ming Chang
February 2014 answer key
Nightfall over the cornfield
Scanning electron microscope image of molecular beam epitaxy-grown InAs/InGaAs nanowire heterostructures on Si(111) after postgrowth wet chemical etching in citric acid and subsequent acetone/isopropanol solvent bath.
Gregor Koblmüller, Technical University of Munich
The answers will be in the June 2014 issue.