Featured in engineering
This lightbulb is more than 100 years old—and it still works
A former fire chief recounts the story of a light that never burns out.
How NASA kept its Mars rovers alive long past their expiration dates
Extending Curiosity and Perseverance’s lifespans wasn’t easy. Just ask NASA engineer Matt Keuneke.
The life-saving space blanket has humble origins
There’s a reason NASA-inspired heat sheets have survived for so long.
Washington, D.C. is home to a fascinating labyrinth of tunnels
The underground passages, some of which date back hundreds of years, connect key buildings beneath the nation’s capital for a multitude of uses.
Old text messages are letting people chat with the dead
In giving voice to the digital ghosts of the deceased, chatbots are trying to succeed where memories and mementos fail.
The Boston Dynamics robots are surprisingly good dancers
Is it adorable or creepy? It might be both.
How to build a gingerbread house that won’t fall apart
The cookie doesn’t have to crumble that way.
The wildest engineering innovations of 2020
They’re the Best of What’s New.
Cobra 3D-printed its limited-edition putter with stainless steel
The King Supersport-35′s complex inner structure would be impossible to make with typical manufacturing methods.
Good winter tires excel at these three things
The science of getting a grip.