In one sentence, describe what the following article is about: The film developer and water mixture is what you'll use to develop your film negatives in the tank. You need enough of the mixture to completely fill the tank. The exact amount you should mix depends on the size of your film tank, but it's usually around 16 fluid ounces (470mL) of film developer and 16 fluid ounces (470mL) of water. Mix the developer and water in a metal or plastic container, not in the film tank. You don't need to stir the developer and water together. You can find film developer online or at your local photography store. The temperature of the film developer and water mixture determines how long your film will need to develop for. Once you know the mixture's temperature, refer to the manufacturer's instructions for your film to see how long it will need to develop. Every kind of film is different, so it's important that you read the directions that came with yours. If you can't find the developing times for your brand of film, try looking them up online. Film typically needs 8.5 to 11 minutes to develop. Pull the uppermost plastic lid on the tank off to reveal the funnel-shaped hole underneath. Do not unscrew the larger lid that's sealing the tank shut. Pour the developer and water mixture directly into the hole in the lid. Once all of the mixture is in the tank, cover the hole with the plastic lid and immediately set a timer for however long the film needs to develop. Agitating the film means turning the tank over continuously with your hands to help spread the developer around. To agitate your film correctly, you'll need to use the following schedule: First minute of developing: Agitate the film for 30 seconds. Then, place the tank on a flat surface for 20 seconds. After 20 seconds, agitate the film for the remaining 10 seconds of the first minute. Second minute of developing: Let the film tank rest on a flat surface for 50 seconds. Then, agitate the film for the last 10 seconds of the second minute. Subsequent minutes of developing: Repeat the same agitation and rest times you used in the second minute of developing for every minute until the film is finished developing. Take the uppermost plastic lid off the tank so you can empty out the mixture. You can pour the mixture down a sink drain. Stop bath is a liquid chemical mixture that stops film from developing any further. Once your tank is filled with stop bath, agitate it for 30 seconds to help the mixture spread throughout the tank. You can find stop bath online or at your local photography store. Fixer is the last chemical used in the development process. It helps stabilize your film so it can be exposed to light without getting ruined. Once your film tank is filled with fixer, seal it and follow the same agitation schedule you used for the developer mixture. The exact number of minutes you should leave the fixer in the tank depends on the kind of film you're using, but it's typically between 3-5 minutes. You can find film fixer online or at your local photography store.
Summary: Turn the lights on and mix 1 part film developer with 1 part water. Use a thermometer to measure the temperature of the mixture. Pour the mixture into the film tank and set a timer. Agitate the film periodically as it develops. Pour the developer mixture out of the film tank. Fill the tank with stop bath and agitate it for 30 seconds. Pour out the stop bath and fill the tank with fixer.

In one sentence, describe what the following article is about: Like most other parts of your body, you can actually train your lips to become stronger. One of the best ways to do this is by whistling. Whistling puts pressure on your lips, and encourages blood flow. Try whistling whenever you've got a moment to spare. As well as making for a pleasant musical distraction, casual whistling will help you get fuller lips in the long run. Puckering is the go-to exercise for building up strength and lustre in your lips. Pucker up your lips as though you were about to kiss someone, then press your hand up against your lips to meet that kiss. Withdraw your hand after a few seconds, and release your pucker while exhaling. Following these steps count as one 'rep' of the exercise. Repeat as many times as you desire in a session; between 10-20 should be fine to start. Although such frequent puckering may feel strange at first, you'll find your lips getting stronger after a few sessions of this exercise. Breathing exercises can also help plump your lips, provided your lips are given some strain in the act. Pucker up your lips, inhale air through your nose, and exhale while holding your pucker. This will stimulate your lips and help in giving them a plumper look. Between 5-10 reps should make a good workout session for your lips. Repeating these sessions daily, or bi-daily will ensure the appearance of more lustrous lips. For a quick-fix for bigger lips, there are many simple lip pumps and 'cups' that plump your lips via suction. Placing a lip cup on your mouth and creating suction will create pressure and blood flow, giving a temporary boost to the size of your lips. Many of these cups are quite cheap and easy to use, and they're suitable for bringing with you to social events, to use when you need some freshening up.
Summary:
Whistle! Exercise your lips with puckering. Try breathing exercises to work out your lips. Use a lip pump.