Posts Tagged ‘protons’
Space – Which is the Reference Point For Our Universe?
Think of your home. If someone was to ask you where is your home, you would give landmarks, street number and other details to point out the location of your home. Same thing applies to your state, your country. Where is the USA? You will answer- north of Mexico and south of Canada. Are you getting the drift of my discussion? We have reference points for all locations on the earth. Similarly we have reference points of stars in the universe. When we think of the sun as stationary with reference to space, we can locate other stars. Sun is the reference point for locating then. But what about reference point of the universe itself?
If you were to assume that the universe was not infinite but finite and with a shape then you need to get a reference point for that. This provided you think that there are other universes in the space. Where does the boundary of our universe end? What is beyond that? If our universe is part of larger space, then only space must be beyond our universe. Then there should be another universes somewhere else. This brings us to the question- Are we alone in the larger Universe? Is our universe the only one in the larger universe or there are other universes. No clear answer is yet available for this.
Universe is a great mystery. We look at stars and forget to think that there are stars beyond, and more beyond, at distances that defy human comprehension. What are these stars doing there? What lies beyond? It is all a big mystery. The existence itself is a big mystery. A small atom has a nuclei that has protons- all positive charged together, and we have stars that match the forces so very well that everything looks just perfect. Difficult to understand – Go ahead and think.
Author: CD Mohatta
Article Source: EzineArticles.com
Provided by: PCB Prototype & Manufacturing
Chemistry Help That Will Raise Your Chemistry Grades
Everyone should take chemistry. It is important and it is a lot easier than you think. Most people do not need chemistry help. But there is a lot of chemistry help out on the internet for those who do. There are chemistry videos, chemistry help for homework, and chemistry blogs.
The hardest part of chemistry is realizing that you just have to memorize some stuff. It may never make sense to you, but if you can memorize it you can then figure out other stuff. For example, memorize “protons are positive” and “like repels like”. Then you can answer “do protons repel each other and if so why?” The answer is “‘protons are positive’ and ‘like repels like’ so positive protons repel positive protons.”
Many chemistry help sites offer ideas on how to pass chemistry. Usually this advice has nothing at all to do with chemistry. They say: study, do your homework, ask questions…. but they do not offer any real chemistry help. Did you really need to hear this? You have heard this about every other course, it should be not surprise that studying and homework help you pass chemistry.
We on the other hand, only offer chemistry help. If you do not already know that you must study…well we can’t help you there, it’s probably too late. You can pass chemistry by memorizing a few select items, learning some simple algebra, and learning to count electrons. If you memorize nitrate = NO3- then you will not be confused when you hear nitrate, you will know what it means. Memorize 1 mole = 602 billion trillion.
Some concepts in chemistry can be difficult and many times are explained poorly. The concept of a mole can be deeply confusing to new chemistry students. Some teachers (but not all of them) will offer more technical explanations when many times the student only needs a simpler explanation. We offer chemistry videos which are not just another chemistry lecture. Our videos focus on explaining concepts in a different way, a way you might not hear in your chemistry lab. We focus on common mistakes which are usually the difference between a high B and a low C. If you can avoid these mistakes your chemistry grades will be higher.
Author: Sean OBrien
Article Source: EzineArticles.com
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