In one sentence, describe what the following article is about: Navigate to the 4chan homepage. You’ll find a quick description of the site and a full list of the boards. Since 4chan doesn’t have a system of usernames and passwords, you don’t have to sign up for anything before browsing. You’ll find links to the rules and FAQ pages just below the site description on the home page. If you plan on posting anything, it’s worth your time to familiarize yourself with them in order to prevent getting banned. For example, according the rules, you must be 18 years or older to access the site. You can’t post or discuss anything illegal, advertise, or complain about 4chan policies. If you post in a board that deals with specific content, like technology, your post has to relate to that board’s topic. The first time you click on a board, you’ll be required to agree to a disclaimer before you can browse. The most popular board is Random, or /b/, which is notorious for spawning many mainstream internet memes. Note you’ll almost certainly encounter pornography, gore, and otherwise offensive content on the Random board. If you’re not interested in that kind of imagery, there are plenty of other topics to browse.  Technology, Video Games, and Paranormal are filled with interesting conversations on their respective topics. LGBT covers issues like coming out, transitioning genders, and marriage rights with an unexpected degree of seriousness. The Auto, Fitness, and Do It Yourself board can offer constructive content focused on these respective topics. Read through the first page’s threads, then use the page numbers at the bottom to navigate to other pages. Stick to “lurking,” or browsing without posting, when you’re just starting out. Lurking a board’s threads for two or three weeks will help you get a feel for its culture and vocabulary. Once you're in a board, you'll see a list of letters and abbreviations at the top of the page. These are links to 4chan's other boards. You can use these links to go to another board without having to return to the homepage.  If you hover your cursor over a letter or abbreviation without clicking it, a tooltip will appear letting you know which board it links. For example, /g/ links to the Technology board, /o/ links to Auto, and /diy/ links to Do It Yourself.
Summary: Visit the homepage to view the list of boards. Read the rules and FAQ. Click on a board and agree to the disclaimer. Browse through a board’s pages. Navigate boards using the alphabetical links at the top of the page.

In one sentence, describe what the following article is about: To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit temperature. Then divide this number by the fraction 5/9. The formula should look like this:  C=59∗(F−32){\displaystyle C={\frac {5}{9}}*(F-32)}  (C){\displaystyle (C)} = Celsius temperature and (F){\displaystyle (F)} = Fahrenheit temperature For example, if the temperature is 100°F, you would first subtract 32 from 100, which would give you 68. Then, you would multiply 68 by 5/9, which would give you the temperature of 37.778°C. If you live outside the United States and use the Celsius scale, you can, of course, skip this step. You can also use online temperature converters to simplify this step. After converting the air temperature to Celsius, you need to find out the saturated vapor pressure, or the maximum amount of water vapor the air at that temperature can hold. You can use this formula to calculate the saturated vapor pressure:  es=6.11∗10(7.5∗T237.3+T){\displaystyle e_{s}=6.11*10({\frac {7.5*T}{237.3+T}})}  (es){\displaystyle (e_{s})} = standard vapor pressure and (T){\displaystyle (T)} = air temperature You can use the same formula to find the actual vapor pressure. All you have to do is substitute the dew point for the air temperature in the formula.  e=6.11∗10(7.5∗Td237.3+Td){\displaystyle e=6.11*10({\frac {7.5*Td}{237.3+Td}})}  (e){\displaystyle (e)} = actual vapor pressure and (Td){\displaystyle (Td)} = dew point You can find the dew point by checking the weather page of your local newspaper or a website that publishes weather information for your local area, such as weather.gov. Now that you have the saturated vapor pressure and the actual vapor pressure, you can find the relative humidity. Just divide the actual vapor pressure by the saturated vapor pressure and multiply that number by 100. You can use this equation:  rh=ees∗100{\displaystyle rh={\frac {e}{e_{s}}}*100}  (rh){\displaystyle (rh)} = relative humidity, (e){\displaystyle (e)} = actual vapor pressure, and (es){\displaystyle (e_{s})} = standard vapor pressure. If math is not your forte, there are several online calculators you can use to calculate relative humidity. Just punch in the temperature and dew point, and you can find out what the relative humidity is in a fraction of a second. The National Weather Service’s relative humidity calculator is one you can use: https://www.wpc.ncep.noaa.gov/html/dewrh.shtml
Summary: Convert the air temperature and dew-point temperature to Celsius. Calculate the saturated vapor pressure with a formula. Find the actual vapor pressure with the same formula. Calculate the relative humidity. Use an online relative humidity calculator for speed and convenience.

In one sentence, describe what the following article is about: When your stomach is upset due to nausea, you need to eat small amounts of food and slowly drink small amounts of fluids to avoid overwhelming your stomach. It is important to eat and drink even when you feel nauseous. Hunger and dehydration can actually cause nausea or make your nausea worse. While eating might be the last thing you want to do, an empty stomach will only make your nausea worse. To avoid upsetting your stomach further, try eating easy-to-digest foods.  Good examples of bland foods include crackers, toast, potatoes, noodles, rice, and English muffins. If your nausea is only mild, you could also try baked or boiled chicken or fish. Good examples of hydrating foods include popsicles, clear broth-based soups, and Jello. Avoid foods that are greasy, salty, or spicy. For example, sausage, fast food, fried foods, and potato chips are your enemy while you suffer from nausea. These foods are all too heavy for your stomach to handle when it is feeling sensitive. The difference in temperature can send your stomach for a whirl, which is the last thing you want while fighting off nausea. As a general guideline, cold food is usually gentler on the stomach and proves more effective at calming nausea than hot food does. Hot food can have strong smells, which can make your nausea worse. Hydration is vital during fits of nausea. Drinking water and fruit juices in small amounts throughout the day will help relieve your nausea. Use a straw to help you sip, rather than gulp, fluids.  Water is your best option, but fruit juices like apple juice can work, as well. Flat soda, especially flat ginger ale, can help settle a nauseous stomach. If you have vomited, drink a sports drink that contains glucose, salt, and potassium to replace any of the minerals you could have lost. Avoid beverages that contain caffeine and alcohol. This can slow down your digestion and lead to a stomachache, on top of your nausea. Wait at least half an hour to an hour before you lie down after you've had a meal to give your stomach time to digest.
Summary:
Eat food in small amounts, throughout the day. Consume bland and hydrating foods. Try not to mix hot and cold foods. Sip clear, cold fluids throughout the day. Don’t lie down right after eating.