In one sentence, describe what the following article is about: Some high end scopes allow you to adjust a third variable in the scope: the parallax. Parallax is the movement of the target as it relates to the reticle in your field of vision when you move your eye away from the center of the eye piece. An issue with your parallax may cause the target and the reticle to appear to be on different optical planes. For many years, nearly all scopes came with an established and non-adjustable parallax because it is uncommon to need to adjust it and fairly difficult to understand. Under most circumstances, you will not need to adjust the parallax. To adjust the parallax (if you have the necessary knob) try the following: Look at the target through your scope and ensure the reticle is completely visible and clear. Move your head up, down and to either side as you adjust the parallax knob slightly. Continue to adjust the knob until the reticle no longer seems to move in relation to the target.
Summary: Adjust the parallax if need be.

In one sentence, describe what the following article is about: Another benefit of talking to your friends about your crush is that they can get information for you. Or you can find out for yourself. Does your crush look nervous around you? Does their face become flush or do they look away sometimes? Those may be good signs. If a girl plays with her necklace, flicks her hair, or rolls up her sleeves, she might like you. If a guy breathes in and pulls his shoulders back or stands like a cowboy, with his hands on his hips and thumbs hooked through his belt loop - he might like you. Think of creative ways to approach your crush about going on a date with you. Search on the Internet for unique ways or ask friends about how they got their boyfriends or girlfriends to go out with them. And if they say yes, plan a memorable date that's fun for both of you. A few things to remember: Don't ramble. Keep it simple. Make it an offer worth their time. Surprise them with something out of the ordinary. Don't underestimate the power of just being confident. Make good eye contact and smile at them. Half of the fun of getting a guy or girl is the challenge before the catch. Enjoy the feeling of liking someone before getting wrapped up in what will happen next. Middle school is a special time for this special feeling.
Summary: Find out if your crush likes you too. Ask your crush on a date. Remember that sometimes having the crush is the best part.

In one sentence, describe what the following article is about: Lemon is a classic natural lightening agent for hair. While it's natural, it can still dry out your hair so it's important to dilute it. Combine 1 part lemon juice with 1 part water to reduce its acidity, and pour it into a spray bottle. For the best results, use fresh, organic lemon juice. Bottled juice can work but make sure that it's 100% real juice. Alternatively, you can buy your own lemons, cut them in half, and squeeze out the juice. Lemon juice is acidic and will dry out your hair. If your hair is already extremely dry, you can substitute coconut oil or conditioner for the water to minimize damage. You can also dilute the lemon juice with more water if you're concerned about damage. After you've mixed up the lemon juice solution, decide where you'd like to lighten your hair whether all over, just the tips, or in highlights. Then, spritz the solution in those areas. Comb your hair with your fingers or a wide-toothed comb to ensure that the solution is evenly distributed. Once your hair is coated with the lemon juice solution, you'll want to sit out in the sun. The heat will help the citric acid in the lemons lighten your hair, so remain outside until your hair is almost completely air dried. To avoid damage, don't sit outside in the sun for more than an hour and a half. If you're concerned about damaging your hair, you can also apply the lemon mixture to your hair at the start of your shower as a rinse. When your shower is over, wash it from your hair and follow up with conditioner. Repeat the process regularly to gradually lighten your hair. When your hair has mostly dried, take a shower and rinse the lemon juice out with your usual shampoo. Condition the hair to ensure that it's properly hydrated, and allow it to air dry. For more intense lightening, you can leave the lemon juice solution in your hair overnight and wash it out in the morning. If your hair needs a more intense conditioning treatment, try sitting under a heated dryer with conditioner on your hair, under a plastic cap.
Summary:
Mix equal amounts of lemon juice and water. Spray the mixture on your hair. Air dry your hair in the sun. Wash the lemon juice out of your hair and condition it.