The yellow is the region where fluid flow from the Earth's outer core is the greatest. Red mush is the inner core boundary. Large flows exist on an imaginary tangent cylinder due to the effects of the Earth's rotations, fluid viscosity and the presence of the solid inner core within the spherical shell of the outer fluid core.
Growth Rates. Fingernails grow approximately 2 to 3 millimeters, or about 1/8 inch, per month. Toenails grow slower than fingernails, at a rate of about 1 mm per month. Hair, on the other hand, grows at a much faster rate: roughly Â¼ to Â½ inch per month, or 6 inches per year. In fact, after bone marrow, hair is the fastest growing tissue in the body.
Nails grow at a rate of approximately 0.1 mm/day or about 1 centimeter every 3 months. The nail acts as a record of certain illnesses with the longitudinal axis serving as a timeline. The position of any nail deformity, like Beauâs lines, may indicate the time of an illness. Causes of Fingernail Ridges, Pitting and Curved Nails Normal Lines and Ridges on the Nails Longitudinal ridges (running from the cuticle to the free edge of the nail) may be due to aging and not a sign of any disease.