INPUT ARTICLE: Article: This is a simple system in which each fixture has its own vent pipe. It is simple to plan and implement, because you won't have to worry about placing different fixtures close enough together or using pipes big enough for multiple fixtures. Each vent is a small, isolated pipe that you can work with separately. However, having a different vent pipe for each fixture will mean that you have a lot of vent pipes running up through your building and out your roof. This uses a lot of unnecessary piping, and you'll be doing more work than you need to. Depending on the fixture, the vent pipe can be fairly small but should be positioned within a couple feet of the fixture. Make sure to check your local building codes for specific regulations about sizes and distances for your vent pipe. A common layout is to have a drain pipe run horizontally away from a sink or other fixture for up to two feet. Then the drain pipe will join with a vertical pipe. Down from the joint, this vertical pipe acts as a drain for the fixture. Up from the joint, it vents the fixture. Usually, the vent pipe must extend six inches above the roof or 12 inches (30.5 cm) away from vertical walls, but double check your building codes and requirements to make sure. Make sure every fixture has a vent pipe associated with it so that your whole plumbing system will run quickly, smoothly, and safely. Vent stacks can run parallel with waste pipes to ensure proper ventilation in tall buildings. Sub-vents may be branched together to exit 1 vent stack, allowing for only 1 hole in the roof for ventilation.

SUMMARY: Understand dry venting. Create a dry vent by attaching a ventilation pipe to a fixture's drain pipe. Extend the vent pipe outside the building according to building regulations. Repeat the ventilation process with any other fixtures you're installing. Vertical ventilation pipes called vent stacks provide air circulation to any part of the plumbing system.


INPUT ARTICLE: Article: Look in the mirror and practice your facial changes at home. Take note of the way you notice your mood change as you change your face. Remember which tricks make you feel most pleasant so that you can practice them during the day to keep a pleasant expression.  Take a pen and clench it in your teeth—imitating a smile. Do you notice yourself feeling happier? Now take the pen and hold it in your protruding lips—creating a frown. It will create the feeling of being unhappy. Practice vowel sounds. A long “e” forces a smile, “ah” imitates the expression of surprise. Both of these induce pleasant feelings. Notice the tilt of your head. Having a slight tilt to your head is a subconscious sign that you’re engaged and paying attention. This encourages a pleasant disposition. Avoid constantly checking your watch, phone, or how others are reacting. You want to have eye contact and crease your eyes. Creasing your eyes is different from squinting—it’s a good thing to practice in the mirror. The most inviting eyes are fully open yet relaxed. Neutral lips or a frown-shaped pout is much less inviting. Keep a small parting of your lips to relax your facial muscles and convey warmth. With your mouth relaxed, turn the corners of your mouth up. If you’re forcing a pleasant expression, it can often be picked up on by other people. They’ll become suspicious. The best way to avoid this is to actually feel what you’re portraying. Take time out of each morning to think of reasons you have to be pleasant. Take a moment to appreciate them and carry this feeling throughout the day.  Think about friends and family. Consider your recent accomplishments. Start following positive quote Instagram pages. Get a daily calendar with a cute animal on each page.

SUMMARY: Practice at home. Look engaged. Soften your eyes. Keep your mouth relaxed. Become pleasant within.


INPUT ARTICLE: Article: At first launch, the app will open to a screen with Featured Articles. Results will begin to appear as you type. You can use this to refine your search and quickly find the article you are looking for. This lets you access Featured Articles, random articles, your bookmarks, and the wikiHow Survival Kit. The article will be saved to your bookmarks list and available for reading offline. Survival kit articles are permanently stored on your iPad, so you can get help in emergency situations even if you lack an internet connection.

SUMMARY: Launch the wikiHow app by tapping the icon on your iPad's desktop. Search for articles by entering your search terms in the box on the upper right corner of the screen. Tap "Menu" on any screen to open up the Menu. Bookmark any article by tapping "Bookmark" at the bottom of the page. Tap on "Survival Kit" from the menu view to access Survival Kit categories.


INPUT ARTICLE: Article: Apple has created several MP4-variants, including M4A, M4P, M4B, and M4R. These files can all be played in iTunes, but you can use iTunes to convert them to MP3 format as well. You cannot use iTunes to convert an MP4 video file into an MP3 audio file. Use Avidemux to convert your video files to MP3 audio. You can download and install iTunes for free from apple.com/itunes/download/. Click the "File" or "iTunes" menu and select "Add to Library". Browse for the files you want to add. Click the "General" tab if it isn't opened automatically. Import Settings... button. In the "Import Using" menu, select "MP3 Encoder". Select "Create MP3 Version" from the menu that appears. The new MP3 version will be created and placed in the same location as the original file. You can right-click the file and select "Show in Windows Explorer" or "Show in Finder" to open the folder containing the file.

SUMMARY:
Know the different types of MP4 audio files. Download and install iTunes. Add the files that you want to convert to the iTunes library. Click the "Edit" or "iTunes" menu and select "Preferences". Click the . Right-click on the file you want to convert in iTunes.