Gun safety advocates warn of a surge in untraceable 3D-printed weapons in the US

As police departments around the country report a surge in 3D-printed firearms turning up at crime scenes, gun safety ...
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Matthew J. Guberman-Pfeffer studies the physics that makes biochemistry work

When Matthew J. Guberman-Pfeffer started working toward his undergraduate degree in 2007, he planned to study political science, and he selected chemistry as an elective. Guberman-Pfeffer has low ...