Summarize the following:
This first step is very important, because a coin with a low silver percentage mixed with other metals will make for a discolored ring. American quarters made before 1964 are 90% silver, while quarters dated 1965 and later are mixed with copper and nickel. Because of their silver percentage, pre-1965 quarters make excellent rings. Feel free to use other coins, just make sure to Google them beforehand and find out what percentage of silver they are. There are lots of coins to choose from on sites like eBay. The larger the coin, the thicker the ring. A quarter is a great size, but half dollars may actually work better for someone with larger fingers, or someone desiring a thicker band. It is perfectly legal to make rings out of U.S. coins, despite what many people think. It's important that the surface is smooth and sturdy, so the coin does not become warped. Don't worry if you don't have an anvil, because any hard metal surface will do just fine. The surface should be somewhere comfortable because you will be working on it for a good while. It is important to tap and not pound on the coin, or your ring will become distorted. Roll the coin on the hard surface as you tap along the edge. The ring will slowly start to get smooth and will begin "mushrooming" out. In other words, the perimeter of the ring will start to widen as you tap, and a lip will form along the sides of the coin. This step of the process will take you the longest. You should notice the lip forming after about fifteen minutes of tapping, and it can take up to an hour for the ring to be as wide as you'd like. Continue tapping along the side until the width of the lip is the desired width of the ring. This will take a long time, so turn on the television or some music and make yourself comfortable. A good measure of your progress is to watch the writing along the perimeter of the ring. Slowly but surely, that writing should move to the inside of the lip.

summary: Find a coin that's at least 80% silver. Place your coin on a solid pounding surface, such as an anvil. Begin tapping gently along the perimeter of the coin with a hammer.

Summarize the following:
If you have washers, place them around the crank spindle before installing the cranks. Push the right side of the crankset onto the right spindle and wrap the chain around the crank's chainring so that it's between the bike and crankset. Wrap the chain so that it runs from the back gears to the chainring on the crankset. Jiggle the left crank arm and push it all the way down the spindle. If either side of the crank isn't going all the way down the spindle, tap on it with a rubber mallet to push it into place. Place the crank bolts back into their sockets. Then, use the Allen key that you used to uninstall the old cranks to screw in the new crank bolt. Continue turning each crank bolt clockwise until you can't anymore. If your crank bolt has a plastic compression cap that goes over it, place the cap over the center of the bolt and push down to pop it into place. Tighten the cap to the recommended torque, which is typically 5 Newton meters. If your crank has pinch bolts, turn them clockwise with a 5mm Allen key to tighten them and secure the crank to the bike. Tighten them to the manufacturer's specifications, which is generally around 15 Newton meters. Self-extracting cranks do not have pinch bolts. Place a pedal into its socket and start turning the crank counterclockwise. This is an easy way to screw the pedal back onto the bike. Go over to the other side of the bike and repeat the process. Continue screwing the pedals into the crank arm until they are tight. Most pedals will have an engraving that reads "R" and "L" for right and left. This will help you determine which pedal goes on which side. Make sure that the threads of the pedals match with the groves on your crank arm so that you don't strip the threads.

summary: Pop the right crank onto the spindle in the 6 o'clock position. Slide the left crank onto the spindle in the 12 o'clock position. Screw the new crank bolt into its socket with an Allen key. Replace the compression cap and tighten the pinch bolts, if applicable. Screw the pedals back into the crank arms.

Summarize the following:
In your work, you may be discussing something that is described through a chart or table that you want readers to look at. You might also briefly mention something that's discussed in more detail in another section. Put this information in parentheses so your readers know where to go. Example: "Polling showed that within a year after graduation, more than half of students who had a bachelor's degree considered going back to school for a master's degree (see Figure 3)." When you list a series of items in writing, you may identify each item with a number or letter. Enclose those numbers or letters completely in parentheses to alert your readers that this is a list. Example: "The company is looking to hire someone who (a) has a great work ethic, (b) knows everything there is to know about the latest photo editing and enhancement software, and (c) has at least five years of professional experience in the field." Many common research citation styles, including Modern Language Association (MLA) and American Psychological Association (APA), require parenthetical citations in the text of a paper. These in-text citations include the name of the author, followed by either the year the work was published (APA) or the page on which the material appears (MLA). Readers can use this information to find the full citation in the paper's full reference list. APA example: "Research suggests that a link exists between migraine headaches and clinical depression (Smith, 2012)." MLA example: "Research suggests that a link exists between migraine headaches and clinical depression (Smith 32)."
summary: Refer readers to a page, section, or visual element. Set off letters or numbers that identify items in a series. Cite a reference in-text.