Five of the 21 commissioners voted against the deal, arguing that as a mature technology, nuclear should not be subsidised.

At this time analog sound reproduction was a mature technology.

Deep-sea cables, no longer a heroic struggle against the elements, had become instead a mature technology and a serious business.

Galleys were a more mature technology with long-established tactics and traditions of supporting social institutions and naval organizations.

Since then, this measuring principle has been increasingly used and can be regarded as a mature technology with an outstanding inherent reliability.