Article: Safe design on a crib means that the slats are no more than 2 3/8 inches apart. A good rule of thumb to see if the slats are safe is whether or not you can fit a soda can in between them. If a soda can can fit between the slats, so can a child’s head.  Look for the Safety Certification Seal of the Juvenile Products Manufacturers Association (JPMA). This certification label should appear on your baby’s crib. Its mattress should fit snugly, with no more than 2 adult fingers of space between the edge of the mattress and the slats of the crib. Make sure the crib doesn’t have any decorative cutouts in the headboard or footboard that a baby could get caught in. Check all surfaces to make sure they’re smooth, sanded (if wooden) and free from sharp or jagged, and splinters. The sides should latch securely. All screws should be close fitted to the surface, and there shouldn’t be any missing that might be found by your child.  Make sure the crib doesn’t have any missing or broken slats. Check to see that the sides can’t be released by a child inside the crib. If the child is tall enough to stand, make sure the crib’s mattress is kept at its lowest position to minimize risk of falling out of the crib. Blankets, soft toys, comforters, and pillows (adult pillows, throw pillows, or infant donut pillows) shouldn’t be kept in the crib, as they may result in accidental suffocation for very young children. The mattress should be firm and flat.  If your baby needs certain items to fall asleep, take them away once she’s soundly asleep. Avoid using crib bumpers. A child can climb up on top of crib bumpers and fall out of his crib once he’s old enough. The American Academy of Pediatrics (AAP) recommends that babies sleep in warm sleepwear with feet instead of a blanket, to prevent risk of suffocation. You can also use a sleepsack (a wearable blanket) instead of a blanket. A mobile is entertaining and helps develop vision in young babies, but you need to make sure it’s positioned at a safe distance from the baby’s grasping fingers.  When a baby begins to push up on his hands and knees, or by 5 months, you should remove the mobile altogether. Once a baby can reach the mobile with his fingers, it becomes a strangulation risk. You’ll want to make sure that the area immediately around a child’s crib is free of anything that the child could accidentally grab ahold of, such as lamps, wall decorations (including stick-on decals that could fall off the wall and into the crib), cords, and furniture your baby might climb on.  Make sure the crib isn’t located near a heating source, such as a vent or radiator. Make sure any décor that is placed above the crib is anchored securely to avoid having anything fall onto the baby’s head. A child spends a lot of unsupervised time in his crib, so extra attention to safety ahead of time is needed.
Question: What is a summary of what this article is about?
Make sure the crib is designed properly. Make sure your crib is in good repair. Keep only the minimum number of things in the crib. Keep mobiles at least 7 inches above a crib. Ensure the crib is placed safely.
Article: Set your feet a little wider than shoulder-width apart, with one slightly in front of the other. Moshing along with an unruly crowd can send your body reeling. By staggering your stance, you'll be ready for unexpected changes in direction. For maximum composure, stay poised on the balls of your feet. The lower your center of gravity, the more sturdy your base. Not only will this help you keep your balance, it will also absorb some of the force created by flinging your head, neck, and shoulders around like an electrified wildebeest that's had too much caffeine. A solid foundation will also keep you from getting run over in an out-of-control pit. Stand your ground! As the band launches into their first number, raise and lower your chin a few inches to follow along with the beat. Try to let the tempo of the music guide you as much as possible, unless it's a real ripper—you don't want to go too hard too soon.  This is the “warm up” phase of the show. The real headbanging will begin a few songs into the set once everybody cuts loose. The head nod is a good move to go back to if you start to get tired or dizzy. During the song's main guitar line or chorus, start swinging your head in longer and more exaggerated motions. Lean all the way down to about waist height before coming back up. This is a more slowed-down style of headbanging that emphasizes the heaviness of the music.  It may help to headbang along to the bass line if the drum beat is too fast to keep up with. Watch out for the person in front of you to avoid knockin' noggins while you're getting radical. When the band turns up the aggression level, or unleashes a particularly savage solo, bend over at the waist and rapidly shake your head up and down. This technique is sometimes referred to as the “whiplash.” The key here is to use small movements so you can go faster—you only want to lift your head a few inches at a time.  Headbanging at this velocity can quickly leave you exhausted and disoriented, so be sure to take a few moments to rest between songs.  High-speed headbanging is most often performed at death metal, thrash, crust, and hardcore punk shows. It may look out of place at a doom, sludge, or industrial set.
Question: What is a summary of what this article is about?
Assume a comfortable, stable stance. Keep a slight bend in your knees. Start with a slow, rhythmic nod. Slam hard to the heavy riffs. Speed up to match the tempo of a breakdown.