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fingernails
yess. they reproduce more fingernails. yeaah.
People's fingernails are designed to protect the ends of our fingers, which are much more delicate than fingernails are.
drink more calcium
They don't always become a curved shape. A SFD will only become a curved shape if you have a distributed load that is changing over time. A BMD will only become a curved shape if the related shear force diagram is changing over time (not a flat line) however because the SFD is the integral of the force applied and the BMD is the integral of the SFD, generally as you keep going to a higher order, you will start getting more curvy lines.
Littlefinget
My guess is that when the baby starts clawing at your insides, that you will become aware of the existence of its fingernails.
The can has one (1) curved surface. The beans account for many more.
Dams are built curved because arches and curved structures have more strength.
A prism has no curved surfaces. It has 5 or more flat faces.
Fingernail growth typically slows down with age. Factors like hormonal changes, decreased circulation, and decreased cell turnover can contribute to slower nail growth in older individuals. Additionally, nails may become more brittle and prone to breaking as we age.
A curved stick is more accurate, because the puck rolls off the stick easier.