#ndt Non-destructive inspection of engineering equipment, products and installations has always received support from inventors through offering remote vision gadgets / instruments that help in close and detailed examination of the object under inspection. Almost 100 years back, first industrial borescope was invented (in 1921) which allowed inspectors to examine places that were otherwise inaccessible or not viewable by the naked eye.

That invention opened new avenues in the field of inspection and s
Source: NDT