Article: This reduces the chance of damage to you and your computer. Remove the stuck key with a small, flat head screwdriver. Start by lifting each corner of the key, listening and feeling for a snap as it unhooks. Repeat with each corner until the key is removed, after two to four snaps. Use light pressure only. If the key doesn't pop out, try a different corner. To remove larger keys, such as the Shift key and Space bar, lever from the top of the key (the side nearest the laptop screen). These can cause the key to stick. Remove small objects with a pair of tweezers. Remove loose dust or animal fur with compressed air or a gentle vacuum cleaner hose attachment. If you've spilled materials on the keyboard, remove the residue with a lint-free cloth. Dampen the cloth with a small amount of rubbing alcohol and wipe the sticky area gently. Leave the key cap off until the rubbing alcohol has fully evaporated and the area is dry. The retaining clip, most often made out of white plastic, consists of two thin, square objects hooked around each other. These should be firmly attached to the keyboard, and to each other. If they are not, remove the clip by gently twisting the corners free with a screwdriver. See below for detailed instructions on replacing them. This nipple-shaped membrane sits beneath the center of the key. Confirm that it is standing up, and try to depress it with a very gentle touch from a clean, soft object. If it sticks in the down position instead of popping back up, it needs cleaning or replacement. Do not touch it with a dirty or sharp object. This part of the keyboard is easily damaged. Clean with a lint-free cloth dampened slightly with rubbing alcohol. Pat with extreme care and wait for it to dry. Before you begin, realize that this is a risky fix, and could ruin the key if you use too much glue. For a more reliable repair, take the keyboard to a computer repair professional to replace the entire keyboard. If you do decide to try this yourself, do so as follows: Very carefully remove a membrane from a key you don't use by levering it off with a sharp knife. It is very easy to damage the membrane this way, but this is usually your only source of replacement membranes. Use a toothpick to place a dab of strong glue, such as silicone adhesive, onto a sheet of paper. Pick up the membrane with tweezers and lower it onto the sheet of paper, then transfer it onto the keyboard. Let sit for at least 30 minutes, or according to adhesive label instructions. Reattach the retainer and key cap on top of this, and let sit another 20 minutes before using.
Question: What is a summary of what this article is about?
Turn off and unplug your computer. Lever out the key with a screwdriver. Look for dirt or small objects. Clean up spills. Examine the retaining clip. Check the silicone rubber membrane. Glue down a new membrane.
Article: There are two canning techniques. One uses a pressure canner, a device that subjects canned food to high pressures to create high temperatures. The other method is to use a boiling-water canner, a device in which canned food is submerged in boiling water. When canning meat, seafood, poultry, and vegetables, pressure canning is the only canning method recognized as safe by the USDA. In addition to a canning device, canning at home requires a glass jar (a Mason jar, typically) and, of course, the food that you wish to can. If you grow your own produce, you could save even more money on your canning materials. You can often assemble canning materials including a canning machine for free on digital marketplaces like Craigslist. Try to get a set of canning jars for free or at a discount rate (but be sure to sterilize them by boiling them in water before use). If you have a community garden in your area, you might be able to lease a small plot for yourself to grow the veggies you want to can. There are two standard canning methods. One is known as "hot packing." This involves blanching your food (usually vegetables), then loading it tightly into canning jars along with some of the water they were blanched in. The other is known as "raw packing." This involves placing raw food into a canning jar and pouring very hot water over it. If you have a boiling-water canner, you should raw-pack your canned food. If you have a pressure canner, you should hot-pack your canned food. After hot packing, seal the jar with a metal lid, and follow the directions that came with your canning device to determine your next steps. The amount of time your canned food will need to spend in the canning device depends on how much you have and what sort of food it is. The only additional cost when canning is your time. Pressure canners work faster than boiling-water canners. Once you've canned your own foods, you'll need to assign each can an expiration date so that it can be incorporated into your pantry system. Generally, home-canned food is best eaten within one year.
Question: What is a summary of what this article is about?
Choose your method. Assemble your materials. Can your food. Determine expiration dates.