INPUT ARTICLE: Article: This instrument measures how much moisture is in the air or the relative humidity in an environment. It uses the cooling effect of evaporation to determine the relative humidity. Relative humidity is the ratio of water vapor in the air relative to the amount that could possibly be there, at a certain temperature. When you walk through fog, for example, you are experiencing 100% humidity. If you walk through a desert, you are experiencing around 10% humidity. To make your own sling psychrometer at home, you will need: Cotton gauze, in pads rather than balls A pair of scissors A small rubber band A liter empty plastic soda bottle Clear plastic tape 2 red alcohol Celsius thermometers Water An 18in (46cm) piece of string Use the water to moisten the gauze. This will help you capture moisture in your sling psychrometer. Cover 1 bulb of the thermometers with the wet gauze using a rubber band. Take the thermometer covered in gauze and place it on 1 side of the plastic bottle. Then, secure it there with tape. Take the other thermometer and attach it to the other side of the bottle using tape. Make sure you can still see the numbers and the red alcohol in the thermometers. Make sure the string is tied well on the the top of the bottle, as you will be holding it and spinning it to get a reading on your sling psychrometer. Hold tightly to the end of the string and spin the bottle in a circle in an open-air space. Do this for 1 minute. Then, record the temperatures on both thermometers. Record the 2 temperatures and then subtract the lower temperature from the higher temperature to determine the temperature difference. You will likely find that the thermometer with the wet gauze will always have a lower temperature than the thermometer with the dry bulb. The wet bulb temperature will always be lower than the dry bulb because water evaporates from the wet bulb when you spin the 2 thermometers. The evaporation then cools the wet bulb. The drier the air is, the more water will evaporate from the wet bulb, leading to a higher temperature difference between the wet and dry bulb. For example, you spin the sling psychrometer outside and the dry thermometer has a temperature of 22 degrees Celsius. You get a wet bulb temperature reading of 12 degrees Celsius. If the weather is very humid one day, you may get a dry bulb temperature of 22 degrees Celsius and a wet bulb temperature of 21 degrees Celsius. Because there is very little water evaporation on the wet bulb, this indicates that there is high humidity outside.

SUMMARY: Be aware of the purpose of a sling psychrometer. Gather your supplies. Wet a double layer of cotton gauze. Attach the thermometers to the plastic bottle. Tie the string to the top of the bottle. Determine the difference between the 2 temperatures.

In one sentence, describe what the following article is about: Before you become too attached or involved with the girl in a relationship, ask yourself what you're hoping to achieve. Do you want to simply become good friends because you think you have a lot in common? Or are you looking for a romantic relationship? Since the girl is in a relationship, you need to figure out: If you're willing to wait for her current relationship to end If you can move on emotionally if she remains in her current relationship If you'd be fine with looking for a different girl who's available to date If you've become good friends, you may be wondering whether or not to move the relationship forward. If she's still in a relationship, avoid asking her out. Since she's in a relationship, she's already made her choice. If she's broken up with her partner, you could prepare to ask her out or wait and see if she asks you out. If you do decide to ask her out, plan how you want to do it. Figure out in advance what you want to say and how you'll ask her. Keep the stakes low and ask her out for a date. Avoid jumping straight to asking her to be your girlfriend. If she just ended a relationship, that may be too much pressure. Be confident and hopeful when you ask her. You should also give her a few choices. For example, you could say, "I know you like Thai food. Would you like to try the new Thai restaurant in town with me tomorrow? Or maybe we could go to a concert this weekend?" If she says no, don't get upset, argue, or keep asking. She might not be ready or interested in starting a relationship with you. Be mature and calm if she refuses you. Chances are, she feels bad about turning you down, so there's no need to be mean or rude to her. If you don't know what to say, say "Ok, maybe another time, I totally respect your decision." This shows her that you like her, but also that understand how she feels. If the girl is still in another relationship, don't lie to yourself about her feelings for you. You might be good friends, but if she's still in the other relationship, it's because she's choosing to remain. Don't tell yourself that she's secretly in love with you or is just waiting for you to ask. Part of being honest with yourself is knowing when it's time to move on. If you think you're more than just friends but the girl doesn't want to leave her relationship, you may need to consider seeing someone else.
Summary: Think about your needs. Decide if you should ask her out. Ask her out on a date. Respect her decision. Be honest with yourself.

Go to https://www.facebook.com in your preferred browser. This will load your News Feed if you're already logged into Facebook. If you aren't already logged into Facebook, enter your email address (or phone number) and password before continuing. It's a speech bubble with a lightning bolt icon that's in the upper-right side of the Facebook window. A drop-down window will appear. This link is at the bottom of the drop-down window. Conversations will be listed in chronological order, so older ones will be toward the bottom of the page. Doing so will open it, allowing you to read it. The further up the conversation you are, the older the messages are. It's in the upper-left side of the Messenger window. Doing so prompts a drop-down menu. This option is in the middle of the drop-down menu. Any messages that you archived will appear here. If you can't find an old message in your inbox, it may be on this page.
++++++++++
One-sentence summary -- Go to Facebook's website. Click the Messenger icon. Click See All in Messenger. Scroll down through your conversations. Click a message you want to read. Scroll up through the conversation. Click Settings . Click Archived Threads. Review your archived messages.

INPUT ARTICLE: Article: Mix a cup (240 mL) of baking soda in a cup of warm water. Stir them together to form a paste. Apply the paste to the stain using your cloth or sponge. Wait for the paste to dry. Take a clean, dry cloth and use it to wipe off the paste. Check to see if the stain has been removed. Mix an equal amount of vinegar and warm water. Add them to a spray bottle if possible, since this will allow you to coat the stain with an even, controlled amount of the mixture. Spray the mixture onto the stain. After five minutes, come back and prepare to finish treating the backsplash with a general wash.. Dampen a soft cloth in warm water. Rub the cloth against the metal's grain over the stained areas. Make sure all vinegar is removed. Finish up by using a soft cloth to remove the water. Make sure no water is left or else it can damage the backsplash.

SUMMARY:
Combine baking soda and warm water in a bowl. Let the baking soda paste dry on the stain. Combine vinegar and water in a spray bottle. Let the vinegar mixture sit on the stain for five minutes. Wipe off the vinegar with a damp cloth. Dry the backsplash with a clean cloth.