In one sentence, describe what the following article is about: If you're taking gas (like helium) from a tank, place the lip of the balloon tightly over the nozzle and fill it up. Or, if you want to measure air, just blow up the balloon using your mouth. Tie the end of the balloon in a tight knot when you're done. Wrap a cloth tape measure around the center of the balloon to check its circumference. To get the radius of your inflated balloon, place a ruler on each side of the center of the balloon, measure the distance between them, and divide it in half. For instance, you place your balloon between two rulers and find that the distance is 10 centimetres (3.9in). Divide this in half to get the radius, 5 centimetres (2.0in). Plug in your measurements into the basic formula for the volume (V) of a sphere, V = 43r3{\displaystyle {
rac {4}{3}}\pi r^{3}}. Plug the radius into the formula to get your sum. For instance,: V = 4353{\displaystyle {
rac {4}{3}}\pi 5^{3}}, or about 523.33 cm3{\displaystyle ^{3}} or 206.04 in3{\displaystyle ^{3}}. Place the lip of a balloon over a faucet and carefully run water into it. Stop when the balloon is the same size as the balloon filled with gas. If you accidentally put too much water in, carefully pour some out. It will be difficult to get the balloons to exactly the same size. To be more exact, wrap a cloth tape measure around the center of the water balloon to check its circumference. Adjust until it's the same as the gas-filled balloon's. Have someone help you measure the circumference of the water balloon while you hold it. Empty the balloon into a large measuring cup, beaker, or something else that can measure volume. Record the amount of water that was in the balloon. The volume of water will equal the volume of gas in the other balloon. If your water-filled balloon is the same size as the gas-filled balloon that you determined (via V = 43r3{\displaystyle {
rac {4}{3}}\pi r^{3}}) had a volume of 523.33 cm3{\displaystyle ^{3}}, then you should measure about 523 milliliters (18floz) of water poured out of it (1 ml = 1 cm3{\displaystyle ^{3}}).
Summary: Inflate a balloon with the gas you want to measure. Measure the balloon's circumference and radius. Use the volume of a sphere formula. Fill up another balloon with water to compare your results. Pour the water out and measure it.

Ask yourself whether you seek something serious or something casual. Do you want a hookup situation, or a steady girlfriend, or a long-term partner? Think about where you are in life, and what your goals are beyond these two girls. It can be easy to let your judgment be clouded by passion. It may help to take a step back from the girls in order to understand what you're really after. Maybe you need to focus on your career right now. Maybe you need a certain stability or casualness that only one of these girls can provide. What do you need? Think about what they have in common, and try to understand how they're different. Consider what each of these girls offers, and envision how each of them makes you feel. If you're going to choose, you need to fully understand your choices. Consider which girl you have better conversations with. Consider who is the most fun, and who inspires you to try new things. Perhaps you enjoy being with one girl more than the other. Think about which girl you can trust. Maybe one girl is a lot of fun, but you can't see yourself building a relationship with her. You may need to consider whether you want something more stable or something more exciting. Determine whether you communicate better with one girl or the other. Communication is incredibly important in any relationship, and you may want to choose the girl with whom you can speak most truthfully. Perhaps one girl makes you feel strong, capable, and worthy, while the other girl belittles you and makes you feel like a stranger to yourself. Maybe one lady makes you feel happy and carefree, while the other only stresses you out. Look for the changes in your own personality when you spend time with each of these girls. Consider which aspects of yourself you want to feed. If you can't bring yourself to give a definitive "Yes!" to either girl, then perhaps you shouldn't be getting serious with either of them. You don't need to force a serious relationship, of course, but it's important to understand why you're having so much trouble choosing. Maybe neither girl is looking for an exclusive relationship, or maybe one of the girls isn't even interested in you! This doesn't mean that you should "play" the girls at the same time; only that the situation might be simpler or stranger than you think. Try talking to the girls (individually) to better understand what they're looking for. Don't be afraid to think outside the box. There are many ways to make relationships work. The important thing is that everyone's on the same page, and that you aren't hurting anyone's feelings.
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One-sentence summary -- Consider what you're looking for. Analyze your relationship with each girl. Notice how each girl makes you feel about yourself. Be honest with yourself. Look for alternative options.

Problem: Article: Get comfortable and get into soft fabrics. Whether you prefer a cotton tee or a fluffy robe, soft materials will help you relax. Also, choose fabrics that will keep you warm but won't let you overheat. Fleece is great to keep you insulated while whisking away moisture. Cuddle up under your favorite blanket for that extra layer of warmth and comfort. Shivering weakens the immune system and our extremities are the first to feel the cold. Cover up your hands and feet under your comfiest blanket. You can also use fluffy socks, gloves, and a hat but this may seem excessive when indoors. Pillows are a great way to relax because they are soft and comforting. Use as many as you need to make you feel comfortable and relaxed. Choosing the right pillow can help you get better sleep and recover from your cold faster. Pillows can be chosen based on material and the position in which you sleep. Pillows can also help to elevate your head and reduce nasal congestion as well.
Summary:
Put your favorite pajamas on. Stay warm. Pile up your pillows.