A "self-healing" asphalt
Paved roads are nice to look at, but they're easily damaged and costly to repair. Erik Schlangen demos a new type of porous asphalt made of simple materials with an astonishing feature: When cracked, it can be "healed" by induction heating.
This talk was presented to a local audience at TEDxDelft, an independent event. TED editors featured it among our selections on the home page.