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 ].
Many nail biters wonder how long it will take until their fingernails have fully grown out and returned to their ânormalâ shape. To answer the question, letâs first examine how exactly fingernails grow.Fingernails are composed of protein fibers called keratin which is the same protein hair is made of.any nail biters wonder how long it will take until their fingernails have fully grown out and returned to their ânormalâ shape. To answer the question, letâs first examine how exactly fingernails grow.