Without direct experience of the meditation, some people have reported difficulties understanding or proceeding to the more advanced material.

Small classes, taught in seminar style, ensure that students have every opportunity to master advanced material.

The company has also benefited from a push by customers in established markets to improve their energy efficiency by using advanced materials in, for example, industrial furnaces.

New high-tech production techniques and advanced materials have sorted out some of the old gripes, but judging by comments from our readers there's still a way to go.

During his tenure, the company has started manufacturing graphene and other advanced materials, as well as contracting its manufacturing services out to other companies.