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Matter & Energy

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TAKING THE BAIT  In an iron (FE) nanoparticle (blue) with an iron hydroxide shell containing oxygen (O, green), uranium (U, red) first takes the bait created by the shell and then is trapped inside the solid iron core.


SMALL WONDER  Ross Kelly purchased this thermometer in Switzerland and displays it online.


When popcorn pops, the biomechanics resemble both an explosion and a spring, a new study finds. 

Matter & Energy

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