Article: Window air conditioners sit on your window, and are supported by a mounting bracket that you screw into your window sill. They have cooling capacities that range from 5,000 to 12,500 BTUs, and are capable of cooling rooms that are 100–650 square feet (9.3–60.4 m2) in area. Smaller units typically cost somewhere between $150 - $250, while larger units with higher cooling capacities can cost as much as $600.  Install window air conditioners in your window or in a designated space designed for a window air conditioner in your wall. Measure your window before selecting a window air conditioner. Window A/C units come in a variety of sizes. Measure the height and the width of your window and make sure these dimensions are slightly larger than the A/C unit you purchase. The height, width, and depth of an A/C unit will be printed on its box. Portable units look like big boxes and typically weigh between 50–80 pounds (23–36 kg). They’re great because you can move them from room to room. Their cooling capacities range from 9,000 BTUs to 15,500 BTUs.  These units use more energy than comparably sized window units and aren’t as efficient at cooling. They are more convenient, however, because they are portable. Portable air conditioners are typically more expensive than window units, ranging in price from $300 - $700. Portable units also tend to be noisier than window units. You’ll need to place the portable unit near a window so that it can vent hot air through its hose to the outside. A single split ductless air conditioner unit can cool several rooms quietly and efficiently. Split ductless units are more expensive than window or portable units, typically costing at least $1,000.  This type of air conditioning is known as a “split” system because it is split between an inside unit and an outside unit. It is called “ductless” because it does not require the installation of any air ducts in your home. Instead, a small hose runs through your wall and connects the inside unit to the outside one. The inside unit is typically mounted high up on a wall near the ceiling and looks like a thin, long white box. Split ductless units are difficult to install, so you may want to call a professional to handle the installation.
Question: What is a summary of what this article is about?
Opt for a window air conditioner if you want to save money. Select a portable unit if window installation isn’t an option. Go with a split ductless unit if you want to cool several rooms.

Problem: Article: While most auditions will have a specific scene or group of scenes that you are required to perform, you may sometimes be asked to come up with your own material. That’s why it’s a good idea to work on a monologue or two, so you’ll always be ready when an audition comes up. Make sure to choose a piece that really allows you to showcase your acting skills.  If you’re not sure what monologue(s) to prepare, consider some of your favorite movies -- there’s bound to be a piece in one of them that will work. It’s usually best to choose an age-appropriate monologue. If possible, find one that’s delivered by character who’s as close to you in age as possible. In many cases, the casting company will send you a script or “sides,” which are just the portion of the script that pertain to the character that you’re reading for, in advance of the audition. Don’t just glance at your lines a couple of times to try to memorize them -- make an effort to understand the character and figure out the best way to play the scene. Many casting directors won’t mind if you hold your script or sides during your audition. However, it’s best if you don’t read directly from it. Instead, just glance at it occasionally to remind yourself of the lines. If you really want an acting career, you must take every audition seriously. While you may not have a job yet, you should act like a professional, so the casting director is comfortable working with you. That means being open to any suggestions that he or she might make and being willing to do the scene several times to get it right. Make sure to project confidence during your audition. If you don’t believe that you’re good enough for the part, the casting director probably won’t either. Acting is an extremely competitive business, even for children. As a result, you’re probably going to go on many auditions that don’t end in a job -- but that doesn’t mean you should lose faith in your skills as an actor. As with most things, practice makes perfect, so the more you audition, the better you’ll become at impressing casting directors. If you realize at some point that you’re no longer having fun pursuing an acting career, talk to your parents. You shouldn’t keep at it if it only makes you feel bad about yourself. And maybe if you cant do these things at school then maybe start a little drama club for you and your friends!
Summary: Prepare a monologue. Study the script or sides. Treat it like work. Don’t get discouraged.

Let the plastic come back to room temperature before you continue working on it. Welded plastic doesn’t take long to cool down, but you can wait as long as you please. Look for the welded plastic to turn solid. If you don’t feel any heat coming off of it, you are ready to work on it.  The best time to fix a weld is before it cools. A good weld looks relatively smooth and consistent. Add more of the welding rod or smooth out the melted plastic with your gun as needed. Set your welding gun aside when you’re done. Remember to put it in a safe spot, such as in a heat-resistant holster, until it cools. Smooth out the rough ridges on the weld to make it look consistent with the rest of the plastic. Apply light pressure to the weld, rubbing the sandpaper back and forth across it. Try to get the weld to look level with the area around it, but be careful to avoid scratching the plastic around it. If you’re looking for a speedier way to do this, use a sanding wheel on a rotary tool. Be careful, though, since plastic is relatively soft and easy to scratch. Switch to finer grits of sandpaper to neaten out the weld. Higher-grit sandpaper is finer and less abrasive, but it can still scratch the plastic if you’re not careful. Rub the weld down like you did with the 120-grit sandpaper until it looks consistent and feels smooth to the touch. Always start with the lower-grit sandpaper. It is coarser, so it wears away more of the plastic. Save the higher-grit sandpaper for finishing.
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One-sentence summary --
Wait at least 5 minutes for the plastic to cool. Sand the welded joint down with 120-grit sandpaper. Finish the plastic with 180 and 320-grit sandpaper.