In one sentence, describe what the following article is about: To cost-effectively generate electricity, an efficient wind turbine needs wind to reach at least 7 to 10 miles per hour (11 to 16 kilometers per hour). Most wind turbines perform best at speeds from 12 to 20 mph (19 to 32 kph). To find the annual average wind speed for your area, you can check online wind maps that list the average wind speed in your area.  You can also purchase a wind measuring tool, called an anemometer, and use it take the wind speed at the location of your planned turbine. Do this daily for a period of time. If the wind speed in your area is fairly consistent, a month of readings should be more than enough, though seasonal changes can drastically affect wind speed. Then, average your readings to see if a turbine at your location is reasonable. Building code changes from area to area, so you'll have to inquire with your local government to make sure your turbine you don't violate code. Some codes stipulate a minimum distance between turbines, as well as how far away the turbine has to be from the property line. There may also be height limitations imposed by local ordinances that you'll need to take into account when building. It's also a good idea to discuss building a wind turbine with your neighbors before investing too much time in planning and construction. This way, you can address their concerns about wind turbines and resolve any misconceptions they may have about noise, radio interference, and TV reception. Although the turbine itself doesn't require much space, to avoid potential conflicts with neighbors, you should generally have at least half an acre (0.2 hectare) of space for a turbine that generates up to 3 kilowatts of power and a full acre (0.4 hectare) for a turbine that generates up to 10 kilowatts. You should also have enough vertical space to build the turbine high enough so that buildings and trees don't block the wind. The kind of blades you use and configuration of your blades may affect the design of your turbine. Old farm windmills were basically small sails attached to a rotating shaft, but wind turbines resemble giant propellers and have large teardrop-shaped blades. These blades should be sized and pitched correctly for the turbine to work efficiently.  If you choose to build the blades, you can make them out of wood or cross-sections of PVC pipe. Instructions can be found online through a general Internet search for "DIY wind turbine blades." Whether you build or buy the blades, you'll likely want to have 3 blades on your wind turbine. Using an even number of blades, such as 2 or 4, makes a wind turbine more likely to vibrate as it spins. Adding more blades increases torque but can make the turbine rotate more slowly. Blades can also be made from household products, like modified shovels. If you plan on going this route, choose a sturdy shovel, and you may want to replace wooden handles with something more durable, like a metal haft. Your wind turbine needs to be connected to a generator to produce electricity. Most generators are direct current (DC), which means that to use one to provide household current you'll need to connect the generator to a power inverter to produce the alternating current (AC) that household appliances use.  You could use an AC motor as a generator, although there may not be sufficient residual magnetism to produce a strong enough electric field. A generator relies on motion, in this case the movement of your blades, and magnetic force to generate electricity. A pre-made generator will be the easiest option for beginners, but tutorials can be found to make your own by searching the internet for "making a wind turbine generator." If you decide to buy a DC generator, look for one rated for high voltage and current and low rotation speed (several hundred instead of several thousand revolutions per minute). You need to generate at least 12 volts over a consistent period of time. Your generator should be connected to a deep-cycle battery bank and charge controller in between the generator and inverter to protect the inverter and battery from power spikes. This will also provide power to the inverter during low-wind periods. Automotive alternators are not recommended as generators. These generally need to spin at much faster speeds than wind turbines can sustain to generate power.
Summary: Determine the average wind speed where you plan to build. Learn building code related to wind turbines. Evaluate spacing for your wind turbine. Choose between pre-made or DIY wind turbine blades. Choose a generator.

Problem: Article: You’ll be able to use this method with both app for mobile device and http://photos.google.com. It’s at the bottom of the mobile app, and on the left side of the website. The icon looks like a square with a bookmark at its upper-right edge. Once clicked or tapped, a list of your albums will appear. If you don’t see any albums, you’ll need to create one first. The album’s current contents will appear. It’s at the top right area of the screen and looks like a photo with a plus sign. Now you’ll see a list of your photos (outside the album), all containing circles at their upper left corners. When you select a photo, the circle at its upper left corner will turn to a check mark. All photos with check marks will be added to the album. You can select as many photos as you’d like. ” It’s at the top right corner of the screen. The photos you selected are now added to your album.
Summary:
Open Google Photos. Click or tap the Albums icon. Click or tap an album to modify. Click or tap the Add Photo icon. Click or tap to select a photo. Click or tap “Done.