With regard to your editorial on 'A check-list for science in Africa', we should think engineering, not knowledge creation. Professional engineering is neither research nor innovation, but it is necessary to construct a solid science infrastructure, which in turn is necessary for development.

Without a stronger engineering capacity, African nations will continue to suffer from poor roads and railroads; poorly designed and constructed bridges, dams and canals; inadequate electrical systems; and poor water and sanitation infrastructure.

If we are to see development in Africa take off, building engineering capacity is essential.