In one sentence, describe what the following article is about: The safest way to make fog in a bottle is to simply use ice cubes and warm water. To start, fill a bottle with warm water. The water does not need to be boiling. Just try to run tap water as hot as it goes. Fill the bottle to a little below the brim and set the bottle aside for 60 seconds. Fog is formed when warm water vapor comes into contact with cold temperatures. By heating up the inside of the bottle with hot water, you are creating warm vapor inside the bottle. While you're letting the bottle sit, prepare your ice. Take some ice cubes from the fridge and place them in a plastic bag or a strainer. Whether you use a bag or strainer depends on the container you're using for your project. Some people use jars instead of bottles for this experiment. If you're using a jar, it's a good idea to set the ice in a strainer, which you should be able to find at a grocery store. The strainer's circular shape makes it fit more easily over a jar. A strainer may not fit easily over the smaller opening in, say, an empty soda bottle. A plastic bag, which is more soft and flexible, can sink slightly into the bottle. This will cover the opening completely. Use a plastic bag if you're using a bottle. Once 60 seconds have passed, pour most of the water out of the bottle. Leave about 1 inch (2.5 cm) of water on the bottom of the bottle. Now, the air inside the bottle is warm. When it's exposed to the cool temperatures caused by the ice cubes, fog will form inside the bottle. Take the plastic bag or strainer. Place it over the covering of your bottle or jar. In a few seconds, you should expect to see fog form inside the bottle. A strainer should fit fairly easily over a jar. However, a plastic bag may need to be secured. If your bag slips off the bottle, try to secure it with a few pieces of duct tape.
Summary: Fill a bottle with warm water and set it aside for a minute. Fill a plastic bag or strainer with ice cubes. Pour out all but 1 inch (2.5 cm) of the water in the bottle. Cover the bottle with the ice cubes.

In one sentence, describe what the following article is about: Get a diode a little bigger than the amperage of your panel and connect it to the bus wire, securing it with some silicone. The light colored end of the diode should be pointing towards where the negative end of the battery goes. The other end should be wired to the negative end of your panel. This prevents energy from travelling back through the solar panel from the battery when it isn't charging. Connect a black wire to the diode and run it to a terminal block which you will need to mount on the side of the box. Then connect a white wire from the short bus wire on the opposite side to the terminal block. Purchase a charge controller and connect the panel to the controller, making sure to connect the positive and negative correctly. Run the wires from the terminal block to the charge controller, using color coded wire to keep track of the charges. If using more than one panel, you might want to connect all of the positive and negative wires together using rings, to make sure you end up with two wires. Buy batteries which will work with the size of the panels you built. Connect the charge controller to the batteries according to the manufacturer's instructions. Once you have the batteries connected and charged from the panel or panels, you can run your electronics off of the batteries, depending on the amount of power you need for them.
Summary: Connect the final bus wire to a diode. Connect the other wires. Connect your panel to a charge controller. Connect the charge controller to your batteries. Use the batteries.

In one sentence, describe what the following article is about: This has been "deprecated", which means it works but is no longer in use or recommended. This is because HTML is not designed to style content. The <u> tag will still work, but is now supposed to represent text that is different than the other text, such as misspelled words or Chinese proper nouns. There is virtually no case where you should be using this method anymore. It can be good to know how it was used in case you have to update an old website. <html> <body> The old underline tag in HTML <u>allowed you to underline things quickly</u>, but it made things a mess when other style elements got involved. This is why modern underlining is accomplished using the "text-decoration" CSS element. </body> </html>
Summary:
Avoid using the old <u></u> tags. Use the <u></u> tags to underline (demonstration only).