Engineering

Ice, refrigeration and the technology of chill

Hydrogen, produced from water by surplus electricity, could power industry and the grid

New machine-learning technique can distinguish living bodies from deceased ones 

Do recent explanations solve the mysteries of aerodynamic lift?

Nations racing to acquire weapons that choose their own targets are ignoring the apocalyptic scenarios that can unfold when rivals catch up 

By leaking water, a soft robotic gripper cools itself more efficiently than humans do

An electronic device increases their speed, and later versions could control their direction as well

Originally published in January 1912

Originally published in April 1945

Originally published in March 1881

Researchers printed a replica of the vocal tract of ancient Egyptian scribe Nesyamun

Fibers that become colder when they are untwisted could inspire more environmentally-friendly fridges