| He also considered curves of double curvature on the sphere and the quadrature of parts of a spherical surface. |
| The two fundamental variables for any quantitative analysis of morphogenesis are the surface curvature and the surface strain rates. |
| Note that this curvature is the inverse of the radius of a circle tangent to the neutral line at this point. |
| The image passes through the lens, which further refracts the light through its anterior and posterior curvatures. |
| But he wanted to be able to feel them once more, their less-than-perfect curvatures beneath her cold lids and stiff, rough lashes. |
| Similar double curvatures were used for concave lenses, and even more complicated corrections for astigmatism. |
