Architecture

Lyon engineer and architect whose 1639 Brouillon project on conics founded projective geometry and whose theorem on perspective triangles underlies the foundations of geometry.

projective geometry, perspective, architecture

English mathematician and astronomer who rectified the cycloid, stated the law of elastic collision and proved the hyperboloid ruled, then became the architect of St Paul's Cathedral and of London rebuilt after the Great Fire.

geometry, astronomy, mechanics

English experimental philosopher, the Royal Society's first Curator of Experiments, author of Micrographia and of the law of elasticity, and an architect of London's rebuilding after the Great Fire.

experimental physics, elasticity, microscopy