Last year an exhibition was mounted at the National Gallery, which showed how impressionist paintings were actually made, and investigated the materials and techniques used.

Researchers have also investigated techniques for crop-tree management that both increases yields and improves forest health.

The government is also investigating more effective and modern techniques such as constructed wetlands.

David is currently working on a project investigating improved techniques and parameters for the measurement of material properties for attenuating surfacing within children's play spaces.

The 21st Engineers were assigned the task of investigating techniques for the rapid construction of air bases.

The Junkers Ju 49 was developed entirely to investigate techniques for flight at high altitude.

Information about investigating techniques and investigating authorities may be found in Orthoshastra.

He said farmers would decide what to grow but it was important to investigate new techniques in order to discover the "facts" about them.

"The mission itself is scientific, but it's investigating techniques that might have defense applications down the line."

Research includes investigating techniques to look for these differences and distinguish natural gem stones from artificially produced ones.