| 1 | 'It's all about having those convex surfaces to reflect light,' he trills. | |
| 2 | Because there is no abrasion between the concave and convex, the nut is reusable. | |
| 3 | So we take water from the torus and insert it back over the core. | |
| 4 | Robust body with raised seating surfaces ground to mirror-like finish. | |
| 5 | Have analyzed and calculated the diffractive efficiency of the convex grating used in the hyper spectral imager. |