In one sentence, describe what the following article is about: Don't let your chest touch your chin.
Summary: Contract your abs to raise your shoulders off the floor. Slowly lower yourself back down to start.

In one sentence, describe what the following article is about: Whether you're spraying, painting, or dipping the pinecones in a sealing product, you'll want to cover your counter or table with newspaper. If you're using a spray sealer, it's even better to work outside. Once you have your space set up, go ahead with your chosen sealing method. Choose a non-yellowing spray varnish. Lay the pinecones on their sides, then spray them using an even coat. Wait for the pinecones to dry for 10 minutes before rotating them and spraying the other side. Let the sealer dry for at least a half hour before applying another coat. Spray sealers come in many different finishes: matte, satin, and glossy. Choose the one that you like the best. The matte usually offers the most natural look, though. If you don't have any spray varnish, you can try using hairspray instead. Purchase a marine varnish from a hardware or home improvement store. Put on a pair of disposable gloves and hold the pinecone by the tip. Use a cheap, disposable brush with stiff bristles to apply the varnish all over the pinecone, except for the bottom. Let the varnish dry for at least 30 minutes, then hold it by its sides, and coat the bottom and tip. Leave the pinecone to dry on its side. You can apply more than one coat of marine varnish, but you have to let the previous coat dry fully. Alternatively, you can tie some thread to the top of the pinecone, then dip it into the varnish. Lift it out, and let the excess varnish drip off. Hang the pinecone by the string to dry. Wrap some string or thin wire around the top of a pinecone. Dip the pinecone into a can of paint or varnish. Lift the pinecone out, and hold it above the can for about a minute to let the excess paint/varnish drip back. Use the string or wire to hang the pinecone someplace where it can dry. Place a newspaper or tray under the pinecone to catch any drips of paint or varnish. Keep in mind that this method may cause the pinecones to close up again. If the paint or varnish is too thick, thin it with water. Use 4 parts paint or varnish to 1 part water. Melt enough solid beeswax in a crockpot to fully submerge the pinecone. Tie a string around the tip of the pinecone, and hold it to dip the pinecone into the melted wax. Lift the pinecone out, and immediately dip it into a bucket of cold water. You may have to repeat this step a few times to get an even coverage. Heat the wax in the slow cooker on high for 2 to 3 hours or until it melts completely. If you don't have a slow cooker, you can also melt the beeswax in a double boiler on the stove. Let the wax set on the pinecone for at least 3 minutes before setting it down. The more you dip the pinecone into wax, the more visible the wax will become. You may wind up with a yellow or white pinecone.
Summary: Prepare your workspace and decide on a finishing method. Spray the pinecones if you want something quick and easy. Use a marine varnish if you want something more durable. Dip the pinecones in paint or varnish if you want a thicker coating. Dip the pinecones in beeswax as an alternative to varnish or paint.

In one sentence, describe what the following article is about: Get your empty, plastic two liter bottle and inch diameter, foot long PVC. Slide the PVC into the bottle. It will fit nice and snug. When you are ready to fire your rocket, head outside as these can sometimes travel up to 100 yards. Squeeze the plastic bottle as hard as you can to shoot the rocket into the air or at a distant target. Make sure the people around you know you're about to fire. Pace the plastic bottle on the ground. With the rocket attached to the PVC, stomp on the middle of the bottle as hard as you can and watch the rocket fly. Make sure the people around you know you're about to fire so you don't hit them.
Summary:
Use a liter bottle. Slide the rocket onto the launcher. Stomp to launch.