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GM Quarterly Profit Surges

General Motors Co. said today its first-quarter profit rose sharply compared with a year earlier despite having to deal with a global shortage of computer chips.

3D Printer ‘Fingerprint’ Fights Counterfeiters

The thermodynamics of the extruder head, or “ThermoTag puts, a stamp undetectable to the naked eye on the physical properties of 3D printed parts. If proven and accepted through additional research, the phenomenon has implications for thwarting counterfeiting of parts and products, protecting intellectual property (IP) and tracing illegal manufacturing of weapons.