Article: The International System of Units (SI) is sometimes called the metric system. These are the units of measurement used in the metric system.   The base unit of measurement in the metric system is the meter. This is close in size, but not exactly, a yard, with one yard being 0.9144 meters. The main units of measurement in the metric system are millimeters and centimeters. There are 100 centimeters in a meter, or 1000 millimeters. These are the lines that have a long line with a number beside it.  Centimeters are smaller than inches. There are 2.54 centimeters per inch. The distance between two centimeter lines is one centimeter. Most standard rulers are either 20, 25 or 30 centimeters long. Meter sticks have 100 centimeters. The abbreviation for centimeters is cm. The smaller units on a metric ruler are called millimeters.   The abbreviation for millimeters is mm. There are 10 mm in a centimeter. Therefore, 5 mm is half of a centimeter. This is an easy trick to remember for measuring in metric.   There are 100 cm in a meter. There are 10 mm in a cm. The millimeter is the smallest unit of measurement on most metric rulers.
Question: What is a summary of what this article is about?
Understand what SI-units are. Find the centimeter lines on a ruler. Learn to read the smaller units. Remember that all measurements in metric are in units of 10.

Problem: Article: The silent treatment often leads to some time apart. Instead of resenting the person or becoming upset about their actions, appreciate the space and use the time and get in touch with yourself. Put the focus on yourself and not the other person by asking yourself, “What am I feeling?”  Recognize any needs you have and take care of them. Although the silent treatment is annoying, try to see things through the person’s perspective. Perhaps they don’t know how to express their feelings. The silent treatment can be a way of coping for the person, albeit an ineffective way. Let them know you’re aware that they are upset and you care about how they feel. For example, say, “I can tell you’re upset, even if you don’t talk about it.” If you know you’ve said or done something hurtful, fess up. The silent treatment may be a way of expressing hurt without verbalizing that hurt. If you know you’re in the wrong, say something. This gives you a chance to connect with their feelings and let them know that you’re aware of the pain you’ve caused. Just feeling heard can soften their wall.  For example, if you said something hurtful, say, "I'm sorry, I didn’t realize how much I hurt you when I said that." However, do not make this about taking the burden onto your shoulders or taking responsibility for something just to resolve the issue or stop their silence. Acknowledge any wrongdoing on your own behalf but don't apologize for the sake of ending the silence. Especially if the person is a family member, partner, or spouse, you may benefit in getting counseling together. Silent treatment is a form of stonewalling, and it does not lead to feelings of intimacy, trust, or happiness in a relationship. See a therapist to help both of you improve your communication and self-expression. Find a couple's or family therapist. You can call your insurance provider or local mental health clinic, or obtain a recommendation from a friend, family member, or physician.
Summary: Embrace the break. Show that you care. Apologize for your own wrongdoings. Get therapy.

If you are getting serious about swimming then you should be warming up outside the pool (no more than 30 mins is necessary) before you go swimming. Do hamstring stretches, prone holds, sprinting, push ups, sit-ups, burpees, and streamline burpees (where you have to do a burpee but end in a tight streamline). If you can't make it to the pool you can still improve your strokes and build muscle. Practicing flutter kicks can be a great exercise for your core. Lay on your back and position your hands together underneath your rear. Then elevate your legs lightly and begin kicking your legs alternately. Try doing this for about thirty seconds, rest, and repeat. Planks are effective body weight exercises that strengthen your upper and lower body, as well as your shoulders, arms, and glutes. This is a great out of water exercise. Practice these steps to perfect your planks:  Position yourself like you are about to do a push-up. Ground your arms slightly wider than your shoulders length. Use your toes to hold your feet and squeeze your glutes (your butt), to stabilize your body. Align your head to be in line with your back. Focus looking down at a single spot on the floor. Hold this position for about twenty seconds. You want to make sure that your legs aren't holding any of the pressure. Practice this at intervals that are comfortable to you. You don't need to hit the gym every time you need to workout. Set yourself up for a routine of about twenty minutes. Try a few of these in your exercise:  10-15 reps of push-up 20-30 reps of crunches 5-10 reps of pull ups 10-15 reps of goblet squats Rest for a minute and repeat Your core is the most important group of muscles that helps you do just about everything. Swimming relies heavily on the strength of your core. Practice a few routines like these:  The bird dog position. Get on your hands and knees, and hold your spine as flat as possible. Then extend your left arm and right leg out away from your body. Do not raise your limbs over your spine, but rather keep them on level with your back. Hold this position for three-four seconds and then switch limbs. V-Sits. Start in a seated position and raise your legs to a 45 degree angle. Extend your arms out to your knees and hold this position for 10-30 seconds. Scissor crunches. Lie on your back and extend your legs flat on the ground. Keep your hands down by your side. Raise your right leg straight up towards the ceiling and lift your left leg about three to four inches off the ground. Take your left arm and extend it to meet your right foot up by the ceiling. Hold this pose for about 10-30 seconds and then switch limbs. Keeping up your cardiovascular system when you don't have a chance to hit the pool will help you stay in shape. Soccer is a great sport that will challenge your lungs and muscles. It also takes a good deal of hand eye coordination that parallels to syncing into your breathe and stroke.
++++++++++
One-sentence summary --
Warm up before you get in the pool. Strengthen your kicks. Work on your planks. Perform weightless exercises. Strengthen your core. Practice other sports outside the pool.