Article: Hand-held Drill or Drill Press Various drill bits Soldering iron Solder Copper dust is toxic, wear a dust mask. Remember not to make the hole to wide, or soldering will be very difficult. There are two types of components: Through hole components (have long legs) and  SMDs (surface mount devices). For SMDs you don't need to drill because they are surface mounted, but through holes need holes in order for them to be soldered on. Through hole components enter the board from the opposite side of the copper. Gently bend the legs of the component against the underside of the board, to hold the part in place. Make sure parts with polarity are lined up correctly with the corresponding positive and negative. Check and double-check the location of all parts before soldering. Please see Soldering Electronics for help. Use a multimeter, if possible, to diagnose connection problems. A De-soldering gun can be used to make minor switches and repairs.
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Gather the following tools: Before drilling, locate all the positions of the through-hole components. Drill through the board with a bit wide enough to accommodate whatever part must be placed at that location. Place the components on to the circuit board at their designated locations. Soldering is a skill that requires practice, although it is not inherently difficult. Test your circuit board before installing it into its permanent location.
Article: Birds are creatures of habit, and have a short attention span, so short, consistent training sessions are the best approach. Birds have short attention spans, so it is important to create a space with few distractions. Confident or acclimatized birds may not require a cage for training. If the bird is nervous or unaccustomed to your home, keeping the bird in the cage as you train it may be necessary. Close all doors and windows, turn off ceiling fans and other devices that may harm the bird, and keep other animals out of the room. Make sure that you are calm and gentle when training your bird; if you are frustrated, angry or nervous the bird will likely become agitated. As you calm the bird, accustom it to your hand, and teach it the step-up command, it is important to reward the bird’s accomplishments. Rewards (such as fruit and nuts) should be reserved specifically for teaching your bird to step-up and be a food the bird does not usually eat.  Smaller, quickly edible rewards can be given to your bird to calm and encourage it as you teach the command. Saying soothing words and being generous in praise will calm and encourage your bird.
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Train your bird 2-3 times a day for 10-15 minutes. Find a comfortable training area. Create a safe and comfortable environment. Prepare a special treat as a reward for your bird.
Article: Tires that are bald or have inadequate tread are unable to maintain good traction with the road, especially in slippery conditions. Having balding tires makes you much more prone to hydroplaning (as well as other tire-related problems like skidding on ice and getting flats). No matter where you live, you're sure to experience wet conditions every once in a while, so be prepared by making sure your tires are in good condition.  Worn tires are more prone to hydroplaning because they have shallow tread depth. A tire with treads that are worn halfway will hydroplane 3–4 mph (4.8–6.4 km/h) slower than fresh tires.  A new tire has a tread depth of around 10/32", and over time this gets worn down. When it reaches 2/32", the tires are considered unsafe to drive on. You can determine whether your tires have enough tread by checking the wear bars. Federal Motor Vehicle Safety Standards require tire manufacturers to make tires with wear bars to indicate how much tread is left. When the tread of the tire is even with the wear bars, it's time for new tires. Try the penny trick to see if you have enough tread. If you can't find the wear bars, stick a penny into the tire's tread with Lincoln's head pointing down. If you can see the top of his head, it's time for new tires. If part of his head is buried in the tread, you can wait to get new tires. Tire rotation is an important way to save the treads on your tires. The type of car you have as well as your driving style can cause some tires to get worn out faster than others. Switching the tires to different wheels periodically prevents tires from wearing down too much on one side. Take your car to a mechanic or tire center and have the tires checked to see if they need to be rotated.  It's customary to rotate tires every 3,000 miles (4,800 km) or so. If you're not sure if your tires have ever been rotated, there's no harm in getting it done just in case. Front wheel drive vehicles need more frequent tire rotation, since this causes the front tires to wear out differently from the back tires. Underinflated tires can make you more likely to hydroplane, since they have more difficulty maintaining good traction with the road. They can also deflect inwards, which makes the tire center higher and traps water easier.  Changes in temperature can cause the pressure in your tires to rise and fall, so it's important to check your tires regularly. Every few months,  check the air pressure in your tires to make sure they're properly inflated.  Each car is a little different, so consult the owner's manual to find out exactly how your tires should be inflated. If necessary, inflate your tires according to the manufacturer's instructions.
Question: What is a summary of what this article is about?
Make sure your tires have good tread. Rotate tires when necessary. Make sure your tires are inflated properly.