Based on the latest historical research, Worlds Out of Nothing is the
first book to provide a course on the history of geometry in the 19th
century. Topics covered in the first part of the book are projective
geometry, especially the concept of duality, and non-Euclidean geometry.
The book then moves on to the study of the singular points of algebraic
curves (Plücker's equations) and their role in resolving a paradox in
the theory of duality; to Riemann's work on differential geometry; and
to Beltrami's role in successfully establishing non-Euclidean geometry
as a rigorous mathematical subject. The final part of the book considers
how projective geometry rose to prominence, and looks at Poincaré's
ideas about non-Euclidean geometry and their physical and philosophical
significance.
Three chapters are devoted to writing and assessing work in the history
of mathematics, with examples of sample questions in the subject, advice
on how to write essays, and comments on what instructors should be
looking for.