This is a Study Guide to the book Alcoholics Anonymous. It is dedicated to those who want recovery from alcoholism, but have difficulty with the word "God". Especially, as that word gets used by individuals who embrace traditional religious concepts of what it means to them. Be advised that other ideas and interpretations, which are consistent with the basic AA text, also have value and usefulness in the recovery process.
What is the Definition of Energy?
We use energy to run, to make things happen. I know, all the school books say energy is the ability to do work. But what does that mean? Well it sort of means the ability to make something happen the nearly-well-known Dave Watson definition.
Everytime a force is exerted on something through a distance which is the definition of work something had to move, which means something happened.
But is that the definition of Energy? My thermo books say work is a process of energy transfer. Not a single one of my numerous thermodynamics text books says energy is "the ability to do work" see fun definitions below.
And what about heat flow? Energy can be transferred through heat flowlike when you put a pot of water on the stove and the water gets hotter. Something happened for sure. The water got hot and eventually, if left on the hot stove long enough, will start to boil.
What forces are involved in this case? There doesn't appear to be anything being pushed through a distance. Some of the more thoughtful text books are careful to explain that the ability to do work applies to mechanical energy, not heat or thermal energy - see the page on types of energy.
But we're not done yet. If you get to the really thoughtful text books or web sites they will explain that what we call heat or heat flow is really the 35, foot view macro level of the result of trillions and trillions and trillions of interactions between atoms and molecules.
At the atomic, or micro level, you can make the case that it looks a lot like work, as individual atomic particles are exchanging energy by doing work on each other again see the page on types of energy. Relevant Digression It's okay to admit we don't have everything perfectly sorted out.
If we had all the answers we wouldn't need science. When it comes to the definition of energy, I want you to realize that it is important, but also to relax a little.
The fact is, no one knows what Energy is! See text book quotes below. We only know how to describe the characteristics of its various manifestations mathmatically. The same is true of other physical phenomena, such as gravity.
The "ability to do work" is more of a characteristic of energy than a definition. Or what if we call it a "defining characteristic"? A device for converting work from muscles into stored elastic energy and then converting that into kinetic energy. Things happen when energy changes form.
Back to the Defining Characteristics For the purpose of explaining energy to beginners, I think the best description is the following nearly-well-known Dave Watson definition: Energy is a property or characteristic or trait or aspect?
By "happen", we mean to make things move or change condition. Examples of changes in condition are changes in shape, volume, and chemical composition results of a chemical reaction.
There are also changes in pressure, temperature, and density which we call a "change of state" in thermodynamics. Phase changes, such as changing from solid to liquid, or liquid to vapor, or back the other way, are also good examples of condition changes.
Without energy, nothing would ever change, nothing would ever happen.Millennials are the future of the U.S. economy.
But when it comes to their future, and the future of the country, they are a deeply pessimistic generation.
EY and EIG conducted a new national public opinion survey of 1, Millennials to gauge their views on a variety of issues related to the.
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Welcome to the official Stanford Prison Experiment website, which features extensive information about a classic psychology experiment that inspired an award-winning movie, New York Times bestseller, and documentary DVD. Why It's Important To Study Something You're Actually Interested In study something that you love.
Study something that you truly enjoy.
Don’t chase money and don’t major in something just to satisfy your parents. Do what you love. If someone once said "I love you" and could walk away so easily from you, then they don't deserve you. Perhaps equally relevant is the question of what makes a good student.
Now obviously there is a difference between knowing what makes a good student, and being willing to . Psychology of Humor: What Makes Something Funny?
April 5, April 5, by Andy. We’ve got to start by defining our key concept if we’re going to study it. the idea is that we’re going to say something is funny as long as it makes someone laugh, makes them think “that’s funny,” or gives them the positive feeling of.