#ndt A three-ply “skin” that can sense damage and report it to operators in real time before the damage causes a problem has been developed. Conversely, it can also report when it’s still in operational condition and doesn’t need to be replaced.

The human body is a remarkable machine. When it’s damaged, it sends pain signals (“ouch!”) to the brain as a kind of damage report. In response, we engage in “maintenance” by attending to the injury before it worsens. Imagine being able to transfer that kind of sentie
Source: NDT