Problem: Article: Urea is best applied on a cool day, in weather between 32° to 60° F (0°-15.6° C), and with little to no wind.  At colder temperatures, the ground is frozen, making it difficult to incorporate the urea into the soil.  At higher temperatures, and in windy conditions, the urea is broken down faster than it can soak into the soil. Urease is the enzyme that begins the chemical reaction that turns urea into the nitrates plants need. Applying urea fertilizers before planting leads to high amounts of the urea being lost before it can benefit your plants. Using a fertilizer with a urease inhibitor can slow the chemical reaction, and helps retain urea in the soil. Urea is packaged and sold as small, solid pellets or granules. Broadcast the urea with a fertilizer spreader or sprinkle the pellets by hand evenly across your soil. For most plants, you will want to keep the urea close to the plant's roots, or close to where you will plant the seeds. Before urea is turned into the nitrates your plants need, it first becomes ammonia gas. Because gases can easily escape from the surface of the soil, applying fertilizer when the ground is wet will help to incorporate the urea into the soil before the chemical reaction begins. This way, more of the ammonia is trapped within the soil. The top half inch (1.3 cm) of soil should be wet to keep as much ammonia gas in the soil as possible.  You can water the soil yourself, apply the urea before it rains, or apply within 48 hours after the snow on your fields has completely melted. Tilling your fields or garden is a great way to incorporate the urea fertilizer into the soil before any of the ammonia gas can be lost. Harrow, drag, or hoe the field in order to incorporate the urea into the top layer of the soil. Certain varieties of potatoes can handle high levels of nitrogen, while others cannot. Be cautious and treat all potatoes the same way. Avoid giving potato plants large quantities of nitrogen with your urea fertilizer.  Urea fertilizers can be applied directly onto potato plants, or in a solution with other fertilizers, as long as the solution is made up of 30% nitrogen or less. Solutions of urea fertilizer that are more than 30% nitrogen should only be applied to fields before potatoes are planted. Urea can be applied directly onto most cereal grains, but never in temperatures above 60° F (15.6° C). When applied in warmer temperatures, the plants will give off an odor of ammonia. Only apply urea to corn indirectly, by spreading the urea onto soil at least 2 inches (5 cm) away from the corn seeds. Direct exposure to urea is toxic to the seeds, and greatly reduces the corn plant's yield.
Summary: Minimize ammonia loss by applying urea on a cool day. Use a urea fertilizer with a urease inhibitor before planting. Spread the urea evenly across the soil. Wet the soil. Till the soil to incorporate the urea. Control the amount of nitrogen you give to potato plants. Fertilize grains with urea on a mild day. Apply urea to corn seeds indirectly.

Problem: Article: You want to learn just as much, or more, about pregnancy and giving birth as your partner. Many hospitals offer birthing classes to new moms, and usually a partner is required for learning breathing techniques and birthing positions. You are needed as a partner for these learning exercises so that you will be prepared when your wife or girlfriend is in labor. Reading books about pregnancy shows your wife or girlfriend that you care about what she is going through. This helps her to feel confident and secure. These books can also give you tips on how to make the pregnancy more enjoyable for her.  You can find pregnancy books online and in book stores, as well as by checking them out from the library. Most pregnancy books and articles recommend that you and your partner have a plan for getting to the hospital in place long before labor starts. This is so that if there is an emergency, you aren’t having to think of all the details and risk a car accident or having the baby before you get there.  Study road maps to find the shortest route. Study alternate routes to find the fastest one in case there is traffic.
Summary: Go to birthing classes. Read pregnancy books. Learn the fastest route to the hospital.

Problem: Article: Use a cleaner specifically sold for use with LCD screens.  Spray a small amount of this cleaner onto your soft cloth. Do not drench the cloth. It should only feel a little moist to the touch, and you should not be able to squeeze any liquid out of it. Only use soft, lint-free, and static-free cloths. Lens cloths work especially well, but any microfiber cloth will usually do the trick. Avoid paper towels, dish towels, terry cloth towels, and other abrasive fabrics. Only use cleaning products specifically created and sold for use with LCD screens. Do not use all-purpose cleaners, alcohol-based products, bleach, aerosol sprays, solvents, or abrasives. All of these products could seriously damage the screen. In extreme cases, the screen may even break completely. Do not spray the cleaning solution directly on the screen. Doing so increases the likelihood of getting moisture into the openings at the bottom or along the sides. Moisture should not be allowed through these openings, since it can short out your computer if it gets inside. Pass the cloth over the Macbook Pro screen, working either from top to bottom or from side to side. Buff the screen in small circular motions, applying steady but light pressure.  Hold the computer screen near the very top or very bottom to reduce the risk of accidentally smudging it as you work. Continue buffing the computer screen as necessary until all smudges are gone, reapplying cleaning solution as necessary. This may take several passes over the screen and several minutes to complete.
Summary: Spray a little LCD or plasma cleanser on a microfiber cloth. Wipe the screen using the cloth.

Problem: Article: . Break the eggshell carefully in half, without dropping any egg. Transfer the raw egg back and forth between the two halves, letting the white drip bit by bit into a bowl until only the yolk remains in the shell. There are several other methods you may use instead. Raw egg yolk will become gelatinous when frozen, making them unusable in most recipes and unpleasant for most people to eat. Prevent this process by mixing it with another ingredient. Use 1/2 tsp (2.5 mL) of salt for each cup (240 mL) of raw egg if you plan to use the eggs in savory dishes If using them for sweet dishes such as baked desserts, skip the salt and instead stir in 1 – 1.5 tbsp (15 – 22 mL) of sugar, honey, or corn syrup. Store the mixed yolk mixture in freezer safe containers, leaving 1/2 inch (1.25 cm) of space to allow for expansion. Seal the containers tightly before freezing, and label with the number of eggs used, the date frozen, and the type of mixture (savory or sweet). Use the egg yolks within several months for best quality. Mix the egg whites together to create a more uniform mixture, without introducing too many air bubbles into the mixture. Unlike the egg yolks, raw egg white does not require any additional ingredients to maintain a high quality in the freezer for several months. If the mixture is still too chunky or uneven for your preferences, strain it through a sieve over a clean bowl. As with the yolks, these should be stored in specialized freezer-safe, rigid plastic or glass containers. Leave 1/2 inch (1.25 cm) of space to allow for expansion. Seal tightly and label with number of eggs and date frozen. Any type of raw egg can be poured into a clean ice cube tray first, then transferred to a sealed container in the freezer. This makes it easier to remove only the amount of egg you need for a given recipe.
Summary:
Separate the eggs Mix yolks with other ingredients to prevent gelling. Freeze the yolks. Gently stir the egg whites. Freeze the egg whites.