Indra’s Pearls: Geometry and Symmetry An explanation of the first computer exploration of Felix Klein's vision of fractals in the 1980s, and what mathematics has gained by it.
Refugees, economic migration and the future of the world economy In the 1990s, the advanced economics appeared no longer self-sufficient...
Mathematics, Motion, and Truth: The Earth goes round the Sun The reality of the Earth's motion, as proclaimed by Copernicus...