because you have a friend right here
It's a pizza crust. The middle is thick and doughy, while the edges are thin and crispy.
A lens that is thin in the middle and thick at the edges is convex. This shape causes light rays passing through the lens to converge and focus at a point, making it a converging lens.
A converging lens or a convex lens is thick in the middle and thin at the edges. It causes light rays to converge at a focal point, which makes it useful for focusing light in optical systems like cameras and telescopes.
deltoids
edge
brink
A nuclear power plant needs a large heatsink, i.e. cooling water. There is very little cooling water in the middle of a desert. That is why nuclear power plants are generally built on the edge of oceans or lakes, or on large rivers.
They both describe a circle. The radius is the length from the middle of the circle to the edge. The diameter is the length of a straight line going through the middle of the circle edge to edge.
A bronze knife edge is typically around 25-50 microns thick. The precise thickness can vary depending on the specific design and manufacturing process of the knife.
no
ice is generally thicker in the middle of the lake once the lake completely freezes, as the edge of the land at the edge of the lake warms the waters edge making it thinner ice.
A is a wedge.