Theodor Reye

[1] The Reye configuration of 12 points, 12 planes, and 16 lines is named after him.

His dissertation was entitled "Die mechanische Wärme-Theorie und das Spannungsgesetz der Gase" (The mechanical theory of heat and the potential law of gases).

Reye worked on conic sections, quadrics and projective geometry.

Reye's work on linear manifolds of projective plane pencils and of bundles on spheres influenced later work by Corrado Segre on manifolds.

He introduced Reye congruences, the earliest examples of Enriques surfaces.