1 Kepler's Task. 2  Accurate Data. 3  Shape of the Path. 4  1. Planets move in ellipses with the Sun at one focus. 5  2. The radius vector describes equal areas in equal times. 6  3. Squares of periodic times are to each other as cubes of the mean distances.
So how fast do the average adult's nails grow? The simple answer is that fingernails grow about one-tenth of an inch (3 millimeters) a month. If you lose a fingernail, it will take four to six months to regrow completely. Toenails take a year to a year and a half to grow from cuticle to tip [source: Robb-Nicholson ].
The toenail grows 0.01 to 0.05 mm/d; growth is more rapid in younger persons. Replacement of an injured or avulsed nail can take 3 to 6 months. Accordingly, recurrent ingrown toenails often become symp-tomatic 3 to 6 months after an initial avulsion procedure.The toenail is supported by the nail unit (Figure 1): the proximal nail fold, the nail bed, the nail matrix, and the hyponychium.he toenail gives stability to the distal soft tissue of the toe, which frequently becomes elevated following ablation of the nail. As a new nail grows outward, it often impinges against the soft tissue, leading to nail deformity or an ingrown toenail.