I think that the minced onions fry quicker around the outer circumference than in the middle because - in addition to the heat from the bottom of the pan the sides of the pan radiate additional heat as well. Therefore the onion around the edge fries quicker.
a circle
The pacific ocean
Breakthru
The outer edge means the furthest most point from the center. The outer edge is usually the end of the object before the dropping off point.
Radius is from the center of a circle to the outer edge. Diameter is from the outer edge to the opposite outer edge, i.e., through the center. The diameter has twice the length of the radius.
The leading edge
The out edge of a cup is called the 'Rim'.
A lens that is thicker in the center and thinner around the outer edge is called a converging lens or a convex lens. This type of lens is commonly used to focus light rays to a point, making it ideal for magnifying objects and creating images.
The outer edge of a circle is called the circumference.
The edge of a cheek cell is irregular and jagged, while the edge of an onion cell is more uniform and rectangular. Additionally, the cheek cell has a softer and more flexible edge due to the absence of a cell wall, whereas the onion cell has a rigid cell wall that gives it a structured shape.
brim
In the outer edge of an atom, you will find the electrons, which are negatively charged particles that orbit around the nucleus. The electrons are responsible for determining the chemical properties of an atom and participate in bonding with other atoms to form molecules.