Article: White tea is a delicately-flavored tea that is made from the silvery-white unopened buds and immature leaves of the tea plant. Some varieties of white tea are made only from buds, without any leaves. Steam the leaves on the stove top for about 1 minute and then dry them in an oven for about 20 minutes at 250° F (121° C) immediately after harvesting. Brew immediately or store the dried leaves in an airtight container for later use. Green tea is made from leaves that have been minimally processed. After harvesting, allow the leaves to wilt in the shade for a few hours, then steam them on the stovetop for about 1 minute. Dry the leaves in the oven for about 20 minutes at 250° F (121° C), then brew. You can also store the dried leaves in an airtight container and use them later. After harvesting the leaves, allow them to sit in the sun for about 1 hour. Bring the wilted leaves inside or place them in a dry, shady spot for 10-24 hours. Gently mix or stir the drying leaves occasionally to aerate and gently bruise them. If you wish, you can either dry the leaves briefly in the oven (20 minutes at 250° F/121° C), or skip oven-drying and roll the leaves into small balls before brewing. After harvesting the leaves, “massage” them by rolling them between your fingers and hands. Do this until the leaves become darker in color. Spread out the bruised leaves on a flat surface and put them in a cool, dry place. Allow them to air-dry for 2-3 days. Complete the drying process by putting the leaves in the oven for 20 minutes at 250° F (121° C). Store the dried leaves in an airtight container.
Question: What is a summary of what this article is about?
Gently dry unopened buds to make white tea. Brew freshly dried leaves to make green tea. Wilt leaves in the sun and dry them in the shade to make oolong. Massage and air-dry leaves to make black tea.
Article: You've probably graphed points with Cartesian coordinates before, using (x,y){\displaystyle (x,y)} notation to mark locations on a rectangular grid. Polar coordinates use a different kind of graph instead, based on circles:  The center point of the graph (or "origin" in a rectangular grid) is the pole. You can label this with the letter O. Starting from the pole, draw a horizontal line to the right. This is the polar axis. Label the axis with units as you would the positive x-axis on a rectangular grid. If you have special polar graph paper, it will include many circles of different sizes, all centered on the pole. You do not have to draw these yourself if using blank paper. On the polar plane, a point is represented by a coordinate in the form (r,θ){\displaystyle (r,\theta )}:  The first variable, r{\displaystyle r}, stands for radius. The point is located on a circle with radius r{\displaystyle r}, centered on the pole (origin). The second variable, θ{\displaystyle \theta }, represents an angle. The point is located along a line that passes through the pole and forms an angle θ{\displaystyle \theta } with the polar axis. . In polar coordinates, the angle is usually measured in radians instead of degrees. In this system, one full rotation (360º or a full circle) covers an angle of 2π{\displaystyle \pi } radians. (This value is chosen because a circle with radius 1 has a circumference of 2π{\displaystyle \pi }.) Familiarizing yourself with the unit circle will make working with polar coordinates much easier. If your textbook uses degrees, you don't need to worry about this for now. It is possible to plot polar points using degree values for θ{\displaystyle \theta }.
Question: What is a summary of what this article is about?
Set up the polar plane. Understand polar coordinates. Review the unit circle