Installing a shorter lever arm is the best way to adapt a racer for speed. However, if the lever is too short, it will spin out. There is no precise formula for how long the lever should be. Experiment to see how short you can get the lever while maintaining control of the car. Longer lever arms will extend the time in which the axle is pulled, making it travel longer distances before the car reaches maximum speed. As a result, it will go slower, but move further. When you increase the size of the wheel, the amount of torque necessary to begin a rotation increases as well. A smaller wheel is easier to turn. So you should make sure that your driving (front) wheel is as small as possible. A good standard is approximately 3 inches (7.6 cm) in diameter.  Use materials that are as lightweight as possible. A larger wheel means more rotational inertia, which keeps the wheel moving once it gets going, but reduces acceleration. A smaller wheel is a trade-off between distance and speed. The overall distance traveled will decrease as you reduce the size of the driving wheel. Experiment to determine what the most functional design is. The greater the ratio of the diameter of the axle to the wheel, the less force will be required to accelerate the car. In other words, you should match a larger axle with a smaller wheel to increase acceleration.  Conversely, a mousetrap racer built for distance should have a smaller axle and a larger driving wheel.  One way to adapt the size of the axle is to wrap tape around the center of the axle, where it does not come into contact with the frame. This added weight will increase the torque of the axle.  Experiment to find the correct amount of torque by adding and removing layers of tape. For the wheel to pick up speed it needs to create pressure against the ground. For the wheel, use a material with a rough texture around the outside to give the wheel traction. Alternatively, cut something that has a rough surface such as a rubber balloon. Glue strips of this material to the outside of the wheel to give it traction. There are so many variables involved in the physics of a mousetrap racer that even similarly built cars operate differently. The only way to perfect your model is to experiment with small variations in design to determine what works best. Study mousetrap racers that have won competitions in the past. Learn from designs that you know work.
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One-sentence summary -- Shorten the lever arm. Find smaller wheels. Increase the size of the axle. Increase traction. Keep on trying.

Q: Gather all of the supplies together that you will need to make your glove. You can find the list of things you will need near the end of the page.  It doesn't matter if the glove is a righty or lefty. Freddy wore his glove on the right, but you can wear it on the left if it will be more comfortable for you. Choose whatever color glove you like. Brown is a good choice, if you want it to look more authentic. Make sure you can only see the silver side. In other words, put the bland, pale sides to each other so you don't see them. Glue or tape the sheets of silver paper together securely so the paper won't slide around while you are trying to cut it. Create four pairs of two pieces of silver paper each. Then cut a 1 inch (2.5 cm) gap at the beginning of each blade in every pair so there are little "arms". You will need to do this or you will not be able to attach your blades to the fingers of the glove.  The blades should be long, thin, and slightly curved. Cut them out into a banana-like shape, with one that is very pointy. The arms will allow you to glue each arm to each side of the gloves finger. If you want, you can stroke the end of the blades with a red permanent marker and add dots for a splattered blood effect. Make sure they are even. Then tape the blades together so they cover the stick. Then duct tape the sides of the blade to the fingers to sturdy them. Only make the side strip 2 inches (5.1 cm).  Then repeat until all four fingers have blades. Consider painting the duct tape to match the color of the glove.
A: Refer to Things You'll Need. Stack 2 sheets of silver paper. Cut four 7 inch (17.8 cm) long blades out of the stack. Take a pair of blades and put 1 on each side of a popsicle stick. Duct tape the pair of blades to the first finger.

Article: For your weave, you’ll at need at least two packages of wefts of human hair in a color coordinating your natural hue. You’ll also need curved sewing needles, weave thread that matches the hair color, a wig cap, and a pick or fine tooth comb for separating sections of hair. When you finish weaving in a weft of hair, you’ll cut the excess with a pair of shears, so have those on hand as well. Measure about 1-inch down the perimeter braid from the first knot you made, and repeat the process. Hook the needle under the braid, pull it through the other side, and tug to pull the loose thread tight. Before the thread between the two knots has been tightened all the way though, wrap the needle around it twice near where you inserted it, and pull tight. This will give you your second knot. Repeat this same process all the way around the perimeter braid.  Each knot should be about 1 inch (2.5 cm) apart from each other. Make sure that your knots and thread are pulled tight, so that your cap is firmly attached to your braids. When you’ve sewn the wig cap around the perimeter braid, you’ll complete the ‘loop’ by sewing around the outside of your part. Starting from your last knot on the perimeter braid, skip up to the next row of braids on your head. Repeat the knot-tying process, and then go up to the next row. By the time you’ve sewn around the part, you should have a large ‘U’ shape of knots. Make sure that each knot is at least 1-inch away from the center part. Finish off by tying two knots at the base of your sewing, where you started on the perimeter braid.  The finishing knots should be the same as the other knots you’ve been sewing the whole time. Cut the extra string off as close to the knot as you are able, without cutting the knot.
Question: What is a summary of what this article is about?
Get all of your supplies. Sew the wig cap to the perimeter braid. Sew the wig cap around your part.