Article: To ensure that you measure PEX tubing properly and cut it evenly, straighten out the tubing. Fold the tubing upward in the opposite direction that it is curling. Lay it down on a flat surface to make sure it is as straight as possible. PEX piping should never be stretched tightly between fittings. Use a measuring tape to find out exactly how much piping you need, then add about 1 inch (2.5cm). This will leave room for the flexible piping to expand and contract. Having a clearly marked cutting line will make the process of cutting your PEX tubing simple and help you avoid mistakes. After measuring your piping, draw a line to mark exactly where you want to cut. Use a pen or fine point marker to ensure that the line will not fade or wipe off before you make the cut. Place the PEX tubing into the mouth of the tool where you want it cut. Position the exact line you wish to cut through directly under the blade. Hold it firmly in place. Grip the handles of your cutter tool firmly. Squeeze them together in a strong, smooth motion so that the mouth closes on the tubing, pushing the blade down onto it. Keep squeezing until the blade goes completely though the tubing, or until you have squeezed the handles as far as they will go. If you are using a smaller PEX cutter, the first squeeze might not make a clean cut. If this is the case, stop and allow the mouth of the tool to reopen. Squeeze the cutter again and twist it downwards slightly to finish the cut.
Question: What is a summary of what this article is about?
Straighten out the PEX tubing as much as possible. Measure your piping and add about 1 inch (2.5cm). Mark the cutting line clearly with a pen or fine point marker. Insert the part of the PEX tubing you want to cut into the mouth of the tool. Squeeze the cutter tool firmly for a clean cut. Keep squeezing and twist the cutter downwards to finish the cut.

Problem: Article: If you want water that glows in different colors (instead of the yellow that is produced by almost all other methods), buy paint in different shades. Try blue, red, and yellow, which you can mix up to create more shades. Glow-in-the-dark paints will glow without the presence of a blacklight--they can be charged by exposure to regular light. The fluorescent paints will only respond to the UV rays from a blacklight. Look for paints that are designed for kids and are 100% non-toxic. Using clear glasses or bottles will allow your glowing fluid to be bright and visible. Using hot water will dilute the paint faster, so you will see faster results. There's not a precise measurement for the paint--just add a little and, if you need more, mix in another few drops. Stir the paint vigorously until it mixes into the water. If you are using glow-in-the-dark paint, check the instructions on how to "charge" them so they glow. Usually you need to expose the paint to sunlight for several minutes before it will glow. The fluorescent paints will only glow if you have a blacklight. Have fun painting with these colors, mixing water to create new shades, or doing other crafts.
Summary: Purchase glow-in-the-dark or fluorescent paint from a craft store. Set up containers for your different colors, filling each container with hot water. Add a dollop of paint to the water and stir. Turn out the lights and turn on a blacklight if you are using fluorescent paints. Finished.

INPUT ARTICLE: Article: You can find it in big box stores or grocery stores in the same aisle as glass cleaner. Make sure it's free of alkaline chemicals like lye or acidic chemicals like vinegar. The label should point out that the product is safe for quartz. Apply enough cleaner to cover the surface of the countertop. Let it sit for approximately 10 minutes. This will give the product enough time to remove any deeply embedded dirt. Dampen a clean nonabrasive sponge or cloth. Glide it across the countertop in gentle counterclockwise strokes until the cleaner is completely removed. Dry the surface with a clean nonabrasive cloth.

SUMMARY: Purchase nonabrasive surface cleaner. Spray the cleaner on the countertop. Wipe away the cleaner.

Visit your local library or a bookstore to begin reading about electronics. Even older books have a lot of information about electrical circuits and how they work. Use it to study the basics before you begin building your own circuits. Try books like Make: Electronics, The Art Of Electronics, or Foundations of Analog and Digital Electronic Circuits. For more resources, search online for informative websites and digital book copies. Search your phone's Play Store to find a number of informative, hands-on apps. Some apps teach you the basics of electronics, while others let you design your own circuit board using a touchscreen. For example, try Electronics Basics or ElectroDroid. An electrical current consists of electrons, which are the negatively charged particles in atoms. In a current, the electrons flow from a negative source, such as a battery terminal. Then, it flows around the circuit and returns to the positive terminal. You can think of it like a faucet. When the faucet turns on, "water" is pushed through until it reaches the end of the pipe. Voltage is a measurement of the force needed to make a current flow through a circuit. In a circuit, the electrons accumulate near the battery's negative terminal. Energy is needed to get the current to flow through the circuit, and this measurement is the voltage. Think of it as pressure in a water tank. When water is drained from the tank, the pressure goes down and less water flows out. Resistance slows the current in a circuit. Different materials inhibit electricity more than others. You will need a stronger electrical current to pass through insulation than a conductive material like metal. This increases the voltage. For example, imagine water pipes of different sizes. Water faces more resistance flowing through the smaller pipe due to the lack of space. Electrical diagrams and schematics use symbols to denote components. Before you can copy one to build your own circuit, find out what the symbols mean. Search online for a list of symbols used as shorthand in diagrams. The straight lines are wires. A battery is represented by a + sign followed by a long and short straight line. Diodes, for example, are represented by triangles. Resistors are represented by squares or jagged lines.
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One-sentence summary --
Read books to learn the fundamentals of electronics. Download a phone application to study electrical engineering. Study how a current travels along a wire. Read about the voltage in a circuit. Study the resistance factor of different objects. Read circuit diagrams to understand the notation.