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Convection describes the transfer of thermal energy in liquids and gases. The most used method of
transferring thermal energy is to heat a substance and then in turn allow the substance to move Cheap NFL Jerseys , therefore carrying the thermal energy to a new location. This is called convection. Convection is used in our everyday lives without us even realizing; steam from a tea kettle, hot exhaust fumes from cars, and even smoke from fires all carry thermal energy from one place and disperse it to another. As stated before, this process relies on two characteristics of liquids and gases. One is that they must flow, carrying thermal energy with them Cheap Jerseys China , and the other is that warmed liquids and gasses must rise in their cooler surroundings.
Since warm air rises, it is able to transfer thermal energy from one energy source to another. Convection is known as the process of transferring thermal energy by the movement of warm liquids and gasses to cooler surroundings. A perfect example to better understand convection is to think of a radiator in a closed room. With the radiator acting as the energy source, the air near the radiator is warmed and soon rises, as it moves upward, the air interacts with outside things such as the walls and the furniture. Its molecules collide with these things and with each collision; the thermal energy is transferred from the warmer air to the cooler surroundings. In no time Cheap Jerseys , the air will cool, sink, and then will be drawn back to the radiator. This process repeats over and over until the radiator is turned off.
Conduction describes the transferring process of energy through solid substances. There is no specific motion in which a material’s molecules is carried away from their original location, but you could probably better understand it using this example: when a pan is being heated on the stove it is only touching the bottom of the pan, however Wholesale NFL Jerseys Shop , if the pan handle is metal, it quickly becomes too hot to touch. This occurs simply because of conduction.
The effects of the many factors of conduction can be combined into one single equation called the thermal conduction equation. This equation can be used to determine the amount of thermal energy conducted through a material. The thermal conduction equation is:
Thermal energy conducted= (Cross-sectional area) X (time) X (Temperature difference)
R-value
The final way thermal energy can be transferred is through radiation and absorption. Radiation-absorption is the process by which thermal energy is transferred through empty space and by electromagnetic waves. A thermal energy source, such as the sun, converts thermal energy into electromagnetic waves. These waves soon travel to an energy receiver, which convert the electromagnetic wave energy back into thermal energy. The energy source is said to “radiate” the energy and the energy receiver is said to “absorb” it. A perfect example of how this happens is one about a bike seat and a hot sunny day. You leave your bike parked outside for a while in the blazing sun and you come back to ride it home and cannot sit on the seat because of how hot it is. This example shows that your bike seat gained thermal energy from the sun. Radiation-absorption is one of the ways in which objects exchange thermal energy with their surroundings. All objects radiate and absorb thermal energy. If they radiate more energy than they can absorb Wholesale NFL Jerseys Cheap , the cooler the object becomes.
In conclusion, thermal energy can be transferred from one location to another by three different processes: convection, conduction, and radiation-absorption.
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We shall begin with honest communication. You cannot have communication without shear honesty. You would agree wouldn't you? No one likes to be lied to and certainly no one will trust you if you are not honest.
The Bible principle is found in Ephesians 4:25 which says, "Therefore Wholesale NFL Jerseys Free Shipping , putting away lying, Let each one of you speak truth with his neighbor, for we are members of one another."
Therefore, always be honest, it certainly is the best policy. However Wholesale NFL Jerseys From China , in saying that, you must be mindful of two important procedures when being honest. The first, be sure to speak truth in love. At times honesty will be painful; therefore, you should consider saying what needs to be said with tenderness and compassion.
You should always take into consideration of the one you are speaking with, in other words Wholesale NFL Jerseys China , empathize with them. Put yourself in their shoes. How would you feel if you were the one being told what you are about to tell them.
The second issue to consider is this; determine if what you are going to say is necessary at all to be said. Some things can go without being said and it will not hurt anyone. Now, of course, I am not speaking about the nonsensical idea that "it does not hurt anyone what they do not know."
There are definitely issues that hurt others whether they know it or not, but some things just do not need to be said at all.
Just as important as being honest, we must work to understand and be understood. William James said Wholesale NFL Jerseys , "There is no greater lie than a truth misunderstood." Thus, if you are misunderstood or you misunderstand you still do not have the truth. It is imperative that you work at understanding what the other person is, indeed, saying, and that you are understood.
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