Engineering

Originally published in August 1866

Originally published in May 1914

With an international deal in serious jeopardy, Iran is not racing to build nuclear weapons—but its capabilities are growing

Originally published in January 1912

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

Do recent explanations solve the mysteries of aerodynamic lift?

Ice, refrigeration and the technology of chill

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

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

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