Problem: Write an article based on this summary: Use water, household cleaners, and bleach. Try oxalic acid for harshly stained crystals. Be careful when handling acid. Rinse the crystals.

Answer: The easiest and safest way to soak crystals to remove stains is using a combination of water and laundry detergent. You can then soak the crystals in bleach overnight. If your crystals have minimal stains, it's best to soak them overnight in a combination of water and household dish soap or laundry detergent.  Use a combination of warm water and laundry detergent to wash the crystals. You can use a soft rag to scrub any dirt and debris that comes off easily. From here, find a container you can cover easily, like a sturdy Tupperware container. Fill this container with warm water and 1/4 cup of bleach. Place the gems in the bleach, cover the container, and set aside in a safe place for two days. If your crystals have a lot of stains beyond regular dirt and grime, such as discolorations caused by iron, oxalic acid may be necessary to properly treat the gems. Oxalic acid is also known as wood bleach, and you can purchase it online or at a hardware store. Purchase a one pound bag of oxalic acid, and get a gallon container. Make sure the material the container is made out of will not corrode in response to acid. Metal containers cannot hold oxalic acid.  Fill the container three fourths of the way full with distilled water. Then, pour in the oxalic acid. Wear an air mask to avoid inhaling the acid. You also want to make sure you work outside. Stir the acid, using a large rod or spoon, until the oxalic acid crystals are dissolved. Add the crystal quartz. There is no set time to soak quartz in oxalic acid. Depending on the staining, it can take a few days to a few hours. Check the quartz periodically and remove them when the stains are gone. You need to take extreme precaution if you choose to handle oxalic acid. Only do so if your quartz are very stained. It is always safer to use bleach and water. If you choose to use oxalic acid, adhere to the following safety precautions:  Wear eye protection, gloves, and a face mask when handling oxalic acid. Always pour acid into water. It is very dangerous to pour water into acid. Get a friend or family member to help you. Make sure to protect your work area and go slowly to avoid spills. Baking soda can neutralize acid spills, so have some baking soda on-hand. Once you've soaked the crystals to remove the stains, you can now rinse the crystals. Make sure to use gloves for this process and, if you were working with oxalic acid, a face mask and eye protection. Wash away any excess bleach or acid with warm water. This should also help remove any remaining dirt.


Problem: Write an article based on this summary: Adjust the piano bench to suit your height. Sit up straight when playing. Check your posture regularly.

Answer: Your piano bench should be positioned so that when sitting on the front half of it your elbows are a little in front of your body. Your arms should be level with or slightly sloping down toward the keys. Your feet should be flat on the floor. For most benches, you'll find that you can adjust the height by turning a knob mechanism or pressing a spring release under or behind the bench. Sit tall and with a slight inward lean to the piano when playing. This might seem unimportant, but your posture at the keyboard can greatly affect the sound you produce. A straight spine will allow you greater stability and poise. It also will enable you to more easily involve your upper body weight when playing, which will help you create a more dynamic sound. Beyond the technical complications created by poor keyboard posture, slouching can also negatively impact your presence when playing. It can be difficult to notice poor posture in yourself. If you are teaching yourself piano, you might want to ask a friend or family member to check your posture from time to time. Make sure you let them know what to look for when it comes to proper piano posture. If you have a consistent posture problem, you might want to set up a full length mirror to the side of your bench. This way, periodically while playing, you can look over and check your own posture.


Problem: Write an article based on this summary: Determine if you're going for the resource collectors, the storage facilities, or both. Understand how to deploy your troops. Send your Barbarians in first. Send in the goblins after the barbarians. Go for the gold.

Answer: This will help you decide where you should place your troops. Your target will depend greatly on the layout of the base and its defenses.  If going for resource collectors, look for resource collectors that are placed outside the walls, stacked together, or outside of the range of defenders. If you are going for storage, look for the easiest way to reach the storage buildings and for storages that are bunched together. Select the desired troop by tapping on the troop icon at the bottom. Deploy the troops at the enemy's base by tapping anywhere on the base. Do not deploy troops all at one place, or mortars will destroy them in one single hit. Identify the weakest sides of the base, or the closest locations to any storages or resource collectors, and deploy your barbarians. Once your barbarians have started taking fire from defenders, send in your archers to start attacking everything in sight. Use your Wall Breaker to clear a path for your barbarians to pour through. After you have deployed your barbarians and archers, and a path has been cleared, send in your Goblins. They will make a beeline for the nearest resource buildings, so make sure you deploy them in a location that takes advantage of this. If resource collectors are placed outside the walls, hit them with your troops. If the enemy's defense is in the range and it killed your troops, deploy a stronger troop like a giant first so that it absorbs the damage done by defense and you can deploy attacking troops.


Problem: Write an article based on this summary: Simmer the mixture for 30 minutes, or until it starts to thicken. Refrigerate the dish for several hours before making the potatoes.

Answer:
Leave the heat on medium-high and set a timer for 30 minutes. Check and stir the skillet every 5 minutes to prevent the bottom from burning. If after 30 minutes the mixture is still not a gravy-like consistency, cook it for an additional 5 to 10 minutes. If you’re having problems with your mixture thickening, try mixing 1 tablespoon (15 mL) of cold water with 1 tablespoon (9 grams) of cornstarch in a small bowl. Then add that to the skillet and mix it until the liquid thickens. If you don’t chill the pie interior, the mashed potatoes will sink down to the bottom of the mixture and change the consistency of the dish. So put it in the fridge for at least 3 hours, though if you could leave it overnight that would give the best results. If you’re really crammed for time, pop the baking dish into the freezer for 1 hour before moving on with the rest of the recipe.