Problem: Write an article based on this summary: Find the right fit for you. Take chair measurements. Establish your seating angles. Don't forget your feet. Prefer an adjustable chair with simple controls. Take breaks from sitting.

Answer: While it's hard to beat the convenience of ordering an office chair from a website or catalog, "try before you buy" is definitely the better way to go when it comes to ergonomic seating. Gather all the evidence and advice you can, but in the end make the choice based on your needs and your comfort. For instance, the ergonomic seating diagram available at https://www.ccohs.ca/oshanswers/ergonomics/office/chair.html is a good starting point, but don't assume that your ideal chair will exactly match its measurements and details. Due to the prevalence of sitting-related injuries, as well as their negative impacts on worker productivity and healthcare costs, there is ample research available regarding ergonomic seating. These studies have established certain chair measurements that tend to make them more ergonomic. Remember, however, that your body needs to be the final judge. The seat of the chair should be about 17 inches high if fixed in place, or 15"24" if adjustable. The "seat pan" should be 16.5" (fixed) or 14"18.5" (adjustable) in depth, and 20"22" in width (or wide enough to allow at least one inch per side beyond your seated hips). The backrest should be 12"19" wide, and high enough to support your entire back, at least to the shoulders if not beyond. If the chair has armrests, they should be adjustable and 7"11" above the compressed seat height (that is, the top of the seat pan when you're sitting on it). While not as precise of a measurement, when seated, you should be able to fit your fist between the back of your knee and the front of the seat pan (with your back against the backrest). To convert inches to centimeters, multiply by 0.39. While you might assume that sitting perfectly upright would be the ideal position, it turns out that a slight recline can substantially reduce the amount of pressure placed upon the discs in your back. A seat back that leans back about 1520 degrees (105110 degrees from parallel with the ground), and perhaps even up to 30 degrees, is likely to be more comfortable. Although a slight recline places less pressure on the discs, it's important not to lean back too much. Leaning back too much may be better for the disc, but it also leads to a change in the position of the neck, putting the neck in slight extension. This can often lead to shortened muscles and eventually muscle pain and tension headaches. While on the topic of angles, your knees should be bent at right angles (90 degrees) when seated. The angle at your hip should be just slightly beyond a right angle, to accommodate the slight recline in you back positioning. Use all the measurements and angles as a guide, but prioritize some simple observations when determining your ideal seat. For instance, when seated, your feet should be able to be (and actually be) planted firmly and flat on the floor. Your knees should be level with the seat pan, and your lower back against the seat back (or lumbar support). If you can't find a comfortable and supportive chair that lets your feet rest flat on the floor, utilize a flat footrest attachment. Adjustable chairs are usually the better choice, as they permit personalization to meet your unique body type and comfort needs. That said, some ergonomic chairs have so many complicated adjustment controls (manual or electronic) that they are often not used properly. Take a little time to figure out how the levers, pedals, buttons, etc. on the chair work before you begin using it regularly. Know how to adjust it to your comfort specifications, instead of having to fiddle around with it while you're juggling a half-dozen other tasks. Experts say you should give an ergonomic chair a "test sit" of one to two hours before deciding if it is right for you. Ideally, that should also be the maximum amount of time that you ever sit in the chair thereafter without getting up to take an on-your-feet break. No matter how well-designed a chair may be, sitting increases pressure on the discs in your back and can hinder blood flow to your legs. Simply standing up reduces these problems and burns substantially more calories; actually moving around a bit is even better. Give yourself an excuse and/or a reminder to get up every hour or so and move around a bit. Your comfy chair will be there waiting for you when you get back. Consider setting a timer on your computer to remind you to get up from your desk for a few minutes every hour.

Problem: Write an article based on this summary: Pay attention to the water level in your aquarium. Look around the aquarium for wetness. Inspect the tank for the leak location. Mark the location of the leak. Know what leaks cannot be repaired at home.

Answer: In some cases, you will first spot a leak in your aquarium by noticing that the water level is dropping. While there is always some evaporation in fish tanks, any noticeable level drop could be due to a leak. If you have a severe leak, the location will likely be very evident and you will be able to find the source from a quick glance around the tank. If the leak is not obvious, you may first suspect one if there is unexplained water around the outside of your tank. Even a small amount of unexplained dampness could signal a problem. If you have changed a filter, added items into your tank, or otherwise interacted with the tank recently, water outside of the aquarium may be due to your activities. Try drying it up and then keeping an eye out for additional water pooling up. If the water returns, then you have a leak. If you suspect there is a leak, but its location is not evident, then you will need to do a bit of investigating. Look for metal corners that appear to be separated from the glass, and for sealant protruding in the corners. These are tell tale signs that the aquarium has a problem. Also, feel around the edges. If you feel water, move upward from that location, until the surface feels dry. The furthest spot towards the top of the tank that is wet is likely to be the leaking area. If you find the location of the leak, or you have an area where you suspect the leak is, you should mark that area with a felt tip pen. This will allow you to keep track of the area once your tank is empty and you begin repairs. Most felt tip pen marks can be easily removed with glass cleaner after you finish your repairs. Leaks along the seams of your aquarium are relatively easy to fix because they are usually caused by a failure in the silicone, and silicone can be easily replaced. However, if the leak is due to a cracked side or bottom of your tank, that is not as easy to repair. Replacing a whole piece of glass will take a lot more time, expertise, and energy. Basically, replacing a glass panel of an aquarium will likely require the skills of a professional. If one of the sides or the bottom of your tank has cracked, it is likely that the whole aquarium will fail. A crack in the glass will spread due to the pressure of the water and once it spreads far enough, the glass panel will collapse.

Problem: Write an article based on this summary: Click on the duplicate layer. Click on the Normal drop-down near the top of the Layers window. Click on Color Dodge. Click on Filter in the menu bar, then click on Filter Gallery. Click on the "Stylize" folder. Click on Glowing Edges. Slide the "Edge Width" slider to a value between 3 and 6. Slide the "Edge Brightness" slider to the middle. Slide the "Smoothness" slider all the way to the right. Click on OK. Click on Image in the menu bar. Click on Adjustments in the drop-down. Click on Invert in the drop-down.

Answer: It's in the Layers window in the lower-right part of the screen. Use the preview to determine when the lines are the weight that you want them to be.

Problem: Write an article based on this summary: Water less if the branches become limp and yellow. Adjust your watering if the needles turn yellow. Give the plant more light if the lower branches become brown. Adjust the moisture levels if the needles drop.

Answer:
Norfolk Island pines like moist soil, but they don't do well with excessive watering. If the branches become limp or start turning yellow, water the tree less often. The tree only needs to be watered when the top inch (2.5 cm) of soil becomes dry. The yellow needles may also drop if you're overwatering. Yellowing needles (not accompanied by limp branches) can be a sign that you aren't giving the tree enough water. Water the soil thoroughly when it dries out, and provide the tree with additional humidity. You can increase the humidity by misting the tree daily. Watch out for the lower branches turning brown and dropping off especially. This is a telltale sign that the tree isn't getting enough light. Move the tree closer to a northeast or northwest window, a shaded south or west window, or to a solarium. Norfolk Island pines need lots of indirect sunlight. If you cannot provide the tree with enough natural light, consider using a full-spectrum bulb that's designed for plants. Dropping needles that don't change color can be a sign of a few things, including too much or too little moisture. Often, it's an indication of too little moisture. If the soil feels dry and you don't water often, water the tree more frequently. If the soil is damp and you water often, cut back. Dropping needles can also indicate that the tree is too close to a draft.