It's called a taper. Time to replace the rotors, calipers and brake pads.
A concave lens refracts light inward toward a point. It has a thinner center and thicker edges, causing light rays to diverge.
Convex lenses are thicker in the middle than at the edges. They refract toward the center. Only people have convex lenses. Concave lenses are used in telescopes and glasses. Concave lenses are thinner in the middle than at the edges. When light passes through concave lenses always bend away from each other toward the edges of the lens.A convex or "positive" lens is thicker in the middle and thinner at the edges. A concave, or "negative" lens is thinner at the middle and thicker at the edges. Convex lenses project a real image behind the lens; concave lenses project a virtual image in front of the lens.
No, concave lenses cause light rays to diverge outward when passing through them. This is due to the lens being thinner at the center than at the edges, causing light rays to spread out.
They are convex lenses.
The secondary meristem that produces wood toward the inside and bark toward the outside of a tree is called the vascular cambium. It is a lateral meristem responsible for the secondary growth in plants, leading to the formation of secondary xylem (wood) and secondary phloem (bark).
vascular cambium
vascular cambium
vascular cambium
vascular cambium
vascular cambium
vascular cambium
toward what?