LiDAR is a powerful tool for mapping terrain, and it can also be integrated into 3D printing. Learn about it here!

C. P. Boyer, E. G. Kalnins, Willard Miller, Jr. We classify all $R$-separable coordinate systems for the equations $\sum_ {ij=1}^3g^{-1/2}\partial_j(g^{1/2}g^{ij ...

Without an ever present magnetic field to rely on, as compass users have on Earth, those of us responsible for spacecraft navigation must utilize a three-dimensional Cartesian coordinate system, or ...

“This case involves nothing other than an assertion that because two coordinate systems were disclosed in a prior art reference and were therefore ‘known,’ that ...