Electronics

Here’s how to buy ethical tech and keep conflict minerals in the ground

Lillian Gilbreth pioneered time and motion efficiency in workplaces and revolutionized kitchen design

Don’t be annoyed if you fail at a certain level of the popular game Candy Crush Saga; computers also have their problems with it

An analysis of previous trials suggests blue-light-filtering lenses may not reduce eyestrain or sleep problems

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A “more is merrier” approach to making computer chips would create the vibrant and fast breakthroughs that America needs to succeed

A wireless device worn on the face or lip can produce fragrances such as lavender and green tea in a virtual world

Researchers recovered lithium from batteries on a small scale by using mechanical force

New “exascale” supercomputers will bring breakthroughs in science. But the technology also exists to study nuclear weapons

A new stick-on ultrasound patch can record the activity of hearts, lungs and other organs for 48 hours at a time

A “replication crisis” in mathematics raises questions about the purpose of knowledge

An integration of soft materials, sensors and flexible electronics is bringing robotic “skin” closer than ever to reality