The undulating form of the ceiling was built from local oak based on traditional boat construction principles.

CNN: Spectacular forms in wood

He describes in loving detail his traditional construction techniques and the spiritual principles they symbolise.

BBC: Can Sufi Islam counter the Taleban?

Dr Oxman believes the design and construction of objects could be transformed using principles inspired by nature, resulting in shapes that are impossible to build without additive manufacturing.

ECONOMIST: 3D printing

During the election he failed to make many election promises - other than to govern by certain principles - "probity, good work and involvement of the youth in the construction of Senegal".

BBC: Profile: Senegal's new president