Communication Essays - Nonverbal Communication, Romance, Free Essays

Communication Essays - Nonverbal Communication, Romance, Free Essays Communication Question 1 Option A Communication between two people sometimes is misinterpreted. One aspect of communication that makes it easy to distort the message being sent to a person is the use of nonverbal codes. Nonverbal codes are codes of communication consisting of symbols that are not words including nonword vocalizations.(P/N 73) The two categories I choose for this test are kinesics and paralinguistic features. Kinesics is the posture, movement, gestures, and facial expressions that are used to send a message. (P/N 73) One example of this is giving the finger to another person, which is showing only your middle finger to someone. This is socially accepted within the group of friends that I run around with, because it is saying, forget you I dont want to hear it, but nothing more is thought of it. It is used in a joking manner, if you are being serious then it is not the right situation to use it. If it is misinterpreted, or used in a serious manner, then it will most likely offend the person that it was directed to. At the same time you only want to give the finger to someone who you are friends with on a personal level. These rules are just a set standard, which are learned through observations. Paralinguistic features are the nonword sounds and nonword characteristics of language. (P/N 79) An example of this is when someone yawns. This is when someone is tired; the body does not function as well. Their circulation is not as good and the body is trying to get more air to the brain. It is socially accepted because it is something that can not be controlled. However, it is also considered rude to do when someone is talking to you because the impression that you are not listening is given to the speaker. In return, if done frequently enough the impression that you do not like the person can be given. This rule is learned from observation. It is important to be aware of the implicit rules for cultural/co-cultural nonverbal codes because if not known then you can easily offend people. The example of giving the finger to someone might mean something else in another country. It might mean nothing at all; in that case, people would not understand you. On the other hand, it also might mean something terrible mean, and then you would offend them. It is important to understand these rules so the signals that you are intending to send will not be misunderstood. Question 2 Option B The Sapir-Whorf Hypotheses states that you can only feel what you can explain in words. If you do not have the words to explain a feeling then you can not feel that feeling to the full extent. Someone who can explain it in words will have a more enriching experience. I personally disagree with this statement. I have to say that when you fall in love no one can explain it completely, but it does not take away from their experience because they can not explain it. My personal example of this would have to be of a church retreat that I went to four years in a row. It was the most wonderful thing that happened to me. The worshiping and the love that I felt with the people there is just indescribable. I do not feel that just because I could learn how to describe it that it would make my experience any better. The only thing it would allow me to express the feeling. This theory is not important to studying communication. Since what is actually stated is not true what good does it do. I feel that people who have a bigger vocabulary might be able to describe the situation better, which in turn means better communication. However, this is not what the hypothesis is stating. Question 3 In a relationship, there are stages that it will go through. While going through these stages, not every relationship will hit every stage, and in the relationship, some stages will occur more than others will. The three most important stages are intensifying, bonding, and differentiating. Intensifying is the stage where the two people where notice that they have a relationship and try to take it to a higher

Boat Cavitation Causes and Remedies

Boat Cavitation Causes and Remedies Next time you find yourself floating chest deep in water, try this little demonstration of cavitation in action while you are waiting for everyone to stop laughing and pull you out of the water. Hold the palm of your hand vertically and pass it quickly back and forth through the water. You will see a stream of bubbles form opposite the direction of travel. These bubbles are what is called cavitation. In the case of boats and ships, cavitation refers to a pocket, or cavity, of air forming on the backside of a prop or impeller blade. What Is Cavitation? What Are Its Causes? The most simple definition of cavitation is; an action that causes a void to form because of lower pressure. As the definition above says, the condition of cavitation is caused by a low-pressure situation. When you moved your hand back and forth through the water you caused the pressure behind your hand to drop. Thats where the bubbles formed. A prop with too much pitch or too much shaft speed will cause pockets to form on the back side of the blades or even at the tips. The reason these voids form is boiling of the liquid. This is not boiling from heat, but boiling from the vacuum. Physics experts tell us that a liquid will boil if heated to a certain temperature or if the pressure of the liquid is reduced. In the case of cavitation, the reason is lower pressure. This cold boiling technique is good for many industrial uses, but it is not wanted near props or pump impellers. The collapsing bubbles are filled with very low-pressure water vapor and when they collapse damage is done to many surfaces. Cavitation is a drag on efficiency because of the increased friction. The bubbles stick to surfaces and essentially increase the thickness of prop blades and more power is needed to increase or maintain speed. Even worse, cavitation can cause vibration because of uneven prop loads and damage or break equipment. Even worse than vibration damage is pitting. Pitting happens when bubbles collapse and all forces are focused on a tiny spot on the blade surface. Damage from vibration is very noticeable and usually preventable with modifications to operating style. Damage from pitting can be happening at a very subtle level and most of the affected components are out of sight in day-to-day operations. An increase in power caused by a poorly adjusted governor can be enough to start minor cavitation near the prop tips and probably would not be noticed by most crews. Only at haul out would the damage to drive components to be noticed. Pitting increases surface area which causes corrosion and few anti-fouling coatings can withstand forces from collapsing bubbles that can eat into hardened steel. This same set of conditions and the resulting damage can also happen inside things like pump housings and thruster tunnels. Cavitation is actually much easier to produce in an enclosed environment than in an open situation like a prop and shaft. In an enclosed area, there is much less liquid volume to rush in and compress the vacuum bubbles that are forming. Cavitation inside pumps is a leading cause of failure. Turning a centrifugal pump too quickly causes the liquid in a pump chamber to boil from lack of pressure. This is even more of a problem if you are pumping a hot liquid like coolant or heavy fuel oil. In a hot liquid situation, you are applying two sources of energy that will make the liquid boil. The first, heat, is external and is the better-understood form of boiling. The second is the mechanical vacuum caused by the impeller. The technical term for this second force is Net Positive Suction Head or NPSH.