Automotive

US cars mandated to spot drunk drivers—and stop them

Breath-sniffing sensors and finger-scanning detectors are central to a landmark US safety mandate to fight drunk driving that is spurring tough questions about what technology can be trusted to do.

Engineering

High-speed infrared helps reveal safer hypergolic propellant

When SpaceX's Crew Dragon capsule splashed down off the Florida coast in August following its first crewed mission, the two astronauts inside could not exit the capsule immediately. Technicians outside had to confirm there ...

Engineering

Optimizing fluid mixing with machine learning

Fluid mixing is an important part of several industrial processes and chemical reactions. However, the process often relies on trial-and-error-based experiments instead of mathematical optimization. While turbulent mixing ...

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