Article: While normally the guy is behind the girl, feel free to switch things up. The girl's hips should move in a circular motion, and the guy's hips should match that motion. Before the guy puts his hands all over the girl, the dancing pair, or trio, should find a comfortable rhythm.  If you're in front, move your booty around in a pattern at around the crotch level of your partner. You're in control. If you're behind someone else, follow her movements. Your pelvises can be directly aligned or slightly off so that of your legs is between your partner's legs. Once you found a comfortable flow, the guy should put his hands on the girl's hips. He doesn't have to grip them too firmly -- just enough to gain his footing and to settle deeper into the grind. The girl can bend her knees, so the couple can move lower to the ground.  As the girl gets low, her hands can travel down her thighs and even to her knees. The girl can keep her arms loose. She can move them up and down to the beat of the music while grazing her own thighs or knees. Guys should expect a booty shake, and girls should expect to shake their booties. Gradually, a girl will get lower to the ground, putting her hands on her knees, or holding the guy's hands near her waist. As she leans forward, her backside will raise in the air, brushing up or hovering near her dance partner.  The guy's hands can travel up from the girl's hips to below her waist, at the top of her backside. This will work as long as the guy is respectful and the girl is comfortable with this movement. If you're up for it, the girl can get even lower to the ground until her hands are nearly touching or touching the floor and her booty is raised high. Sometimes a group of people start grinding together in a chain. Usually, you'll see either a mix of men and women alternating or just women. Sometimes two women will "sandwich" a man, and others will latch on. Don't hesitate to go with whatever makes you feel good. Grinding in a group can be even more fun than grinding with just one partner, but it will require more coordination. If one person in the group bends down, everyone else will have to adjust accordingly.
Question: What is a summary of what this article is about?
Move your hips in the same circular motion. The guy should put his hands on the girl's hips. Get low. Grind in a group.

Problem: Article: "Back to back" refers to a distance from the back of one 90º bend to the back of the other. In other words, this is the distance between the two parallel lines of a U bend, measuring from the outside edges. To create the first bend of the U, follow the instructions above for a stub up bend. Measure the distance the two bends need to fit between, such as the distance between two parallel walls. Place the bent stub end of the conduit against a wall. Measure from this wall along your conduit, to the desired length. Mark the conduit at this length using a permanent marker or pencil. Unlike the placement for the stub bend, the bender's handle should be pointed away from end you measured from. For bends like this, line the star symbol on your bender head up with the mark.  If your bender does not have a star symbol, refer to your bender's instructions. If the distance between the bends is too short for your bender, use the stub up system instead. In other words, turn your bender the other way, subtract the take-up distance described in the stub-up section, and line the conduit up with the arrow mark instead. Place the length of conduit you measured flat on the floor. Apply firm pressure on the foot pedal until the conduit bends to a 90º angle. Checking this angle with a level is highly recommended, since it's important that the two bends of the U are parallel.
Summary: Make a stub up bend. Measure the distance the conduit needs to fit between. Mark this distance on your conduit. Line the star symbol on the bender to this mark. Bend the conduit.

While oven cleaner can be effective in getting rid of scorch marks, it should be used as a last resort because it is extremely caustic and may discolor the pan. You should never use it on a pan with a non-stick or other protective coating, though, because it will strip off the coating and ruin the pan. Because oven cleaner has the potential to damage cookware, you should only use it if you’ve tried other methods of cleaning your scorched pan and they’ve failed. If you’re planning to toss the pan anyway, it’s a worth a try to use the oven cleaner. Oven cleaner contains caustic chemicals that give off very strong fumes, so it’s important to take safety precautions before you use it. Cover your hands with a pair of rubber gloves to keep your skin safe from the chemicals. You should also make sure that your kitchen is well-ventilated before spraying the oven cleaner, so open a window or two if possible.  If you’re especially sensitive to fumes, you may want to wear a dust mask over your nose and mouth when you’re using the oven cleaner. Be sure to read all of the safety warnings on the oven cleaner’s packaging so you’re aware of any other safety precautions that you should take. Once you’re prepared to work with the oven cleaner, spray it over the scorched areas of the pan. Because the cleaner is so caustic, you don’t want to use any more than is necessary so cover the bottom of the pan with a light layer. You can use a brush to ensure that it’s spread over the entire pan. While spray oven cleaners formulas are usually the most common, you can also find cream and foam formulas that may work better when you’re cleaning a scorched pan. In order for the oven cleaner to fully penetrate the scorched areas and loosen the film and debris, you need to let it sit on the pan for at least a half hour. Because of the fumes, it’s best to place the pan outside while the cleaner on it. Cover the pan with a lid, and set it on a table or ledge outside your home. If you don’t have any area outside that you can set the pan, open a window and set it on the window ledge. After the cleaner has sat on the pan for approximately a half hour, use a scrub brush or sponge to scour the pan. The scorched film and debris should lift right off. Once you’ve cleaned the pan completely, make sure to rinse it extremely well to ensure that there’s no residue from the oven cleaner left on the surface. If you’re concerned about oven cleaner residue being left behind on the pan, wipe it down with a dry towel after you’ve rinsed it initially to see if anything comes off on the towel. You should definitely rinse it again if you notice any film, though you may want to rinse it again even if the pan is clean to be safe.
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One-sentence summary --
Make sure your pan isn’t non-stick. Put on gloves and open a window. Apply oven cleaner to bottom of the pan. Cover and set outside. Scrub the pan clean and rinse well.