He was involved in experimental investigations and testing of space technology.

From 1879 to 1888, he engaged in difficult experimental investigations.

A number of other vaccine strategies are under experimental investigation.

The society's common theme was to acquire knowledge through experimental investigation.

The human brain was very inaccessible to any sort of experimental investigation.

Fusion power has been under intense theoretical and experimental investigation since the 1950s.

Further studies of B6 mice may allow experimental investigation of this effect.

This puts it fairly well beyond experimental investigation for the foreseeable future.

Our knowledge about this comes primarily from experimental investigations.

An experimental investigation of accounts and attributions following sexual infidelity.