Joseph Monier fue un jardinero francés ...... inventor del hormigón armado!

http://en.wikipedia.org/wiki/Joseph_Monier

Joseph Monier (8 November 1823, Saint-Quentin-la-Poterie, France-13 March 1906, Paris) was a French gardener and one of the principal inventors of reinforced concrete. As a gardener, Monier was not satisfied with the materials available for making flowerpots. Clay was easily broken and wood weathered badly and could be broken by the plant roots.