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Thursday, March 11, 2010

Save your family in future after you

When we are still around, we can show our love in a thousand ways. At this time, it's just so normal to talk about preparations for our death, because we always wanted to be ready when the time comes. In one form or another, this is the most inexpensive way to purchase a substantial death benefit coverage amount of premiums per dollar basis.But what happens when we move to the other side? I am confident that each of us have this kind of idea.
There are several types of life insurances available now. The most basic one is called the period of insurance. This low cost insurance that only pays benefits if the insured dies during the specified period of time. Well, probably we can not use it in our lives, but at least we can take care of our families financial well-being after if You've Gone. If you happen to be looking for term life insurance quotes right now, you can do it the fastest and most convenient way. Online! Simply fill out the form and wait for the team of people committed to ReliaQuote back to you with life insurance quotes from dozens of Top-rated insurance companies. You can find one that suits your needs.

Senior Independent Living

Taking care of elderly people is something that we need to plan for because it is something that takes resources and money to cater for. Nobody likes to think about it because it is always something that's so far away and there always looks like there is a lot of time to put plans in place. But what happens to most of us is that the time creeps up to us very quickly and very often we do not have any plans and rely on the children and in worst cases on our relations to take care of ourselves. In some ways that should be correct as they are well known to us and we can hope that there should be some level of care for us when we get older.


But it's wiser to do things to take control of our own destiny, at least to some degree. One must have a good pension in the first place to have the unexpected expenses in place. No one know what may happen to us what may happen when we land up in a Old age home, even though I believe that home care is the best form of care if they can manage. There are many things to consider before deciding whether to go for senior independent living or to settle for a homecare. There are several assisted living communities available and they are very well maintained. One such place is Assisted Living where we can find out the right places for old age

living. Assisted living is a very good option for the old in age but young in heart fellows who dare to live by themselves to find the best place of living. The site has several assisted living facilities listed by their location and provides vivid details of all of them. The best part is that we can contact the listed places directly without any middle men or their commissions. Very minute or less noted details like the maps their locations are also provided on this site.It helps us to focus on what we want.

Wednesday, March 10, 2010

Quantum Mechanics- the most difficult nut to Crack ????- Final words

This is why, in a previous thread in PF, I disagree that we should teach students the concepts of QM FIRST, rather than the mathematical formulation straightaway. There is nothing to "build on" in terms of conceptual understanding. We end up telling the students what they are out of thin air. The postulates of QM did not come out of our classical understanding of our world. Instead, the mathematical formalism is the only thing that saves us from dangling in mid air. It is the only thing In which our existing understanding can be built on.

What this clearly implies is that, if one lacks the understanding of the mathematical formalism of QM, one really has not understood QM at all! One ends up with all these weird, unexplained, unfamiliar, and frankly, rather strange ideas on how the world works. These conceptual QM description may even appear "mystical". It is not surprising that such connections are being made between QM and various forms of mysticism. One lacks any connection with the existing reality that one has understood. So somehow, since QM can do this, it seems as if it's a license to simply invent stuff weely Neely.

The Much Mis-understood term Q.M-Quantum Mechanics

The common thread in both cases is that there exists a point as a reference STARTING Foundation on Which, other "new" stuff are built upon. We learn new and unknown subject based upon what we have already understood. This is something crucial to keep in mind Because in the study of QM, this part is missing! Certain I am that for most non-physicists, this is the most common reason why QM is puzzling, and why quacks and other people who are trying to use QM into other areas such as "metaphysics" or mysticism, are using it in a completely hilarious fashion.

There is a complete disconnect between our "existing" understanding of the universe based on classical understanding, and QM. There is nothing about our understanding of classical mechanics that we can build on to understand QM. We use the identical words such as particle, wave, spin, energy, position, momentum, etc ... but in QM, they Attain a very different nature. You can not explain these concepts using existing classical. The line between these two is not continuous, at least, not as of now. How does one use classical idea of a "spin" to explain to spin 1 / 2 particle in which one only Regains upon the identical symmetry only two complete revolutions? We simply have to accept that we use the same word, but to ONLY mean that it produces a magnetic moment. It has nothing to do with anything that's spinning classically. We can not build the understanding of the QM using existing classical spin spin that we have already understood.

Now interestingly enough, the MATHEMATICAL FORMULATION of QM is quite familiar! The time-dependent Schrodinger equation has the same structure as a standard wave equation. We call the energy operator as the Hamiltonian not for nothing since it looks very familiar with the Hamiltonian approach to classical mechanics. The matrix formulation also is not anything new. What this means is that while the conceptual foundation of QM is completely disconnected with our traditional conceptual understanding, the mathematical formulation of QM completely follows from our existing understanding! Mathematically, there is no discontinuity. We build the formalism of QM based on our existing understanding!

Quantum Mechanics- the most difficult nut to Crack ????

Strangely enough, QM's formalism is not any more difficult than other areas of physics. The mathematics of the "standard" QM is not any worse than, let's say, electromagnetism. Yet, to many people, especially non-physicists, QM presents a very daunting effort to understand.

I strongly believe that it all comes down to how we understand things and how we expand our knowledge. Tyically, when we teach students new things, what we do is build upon their existing understanding. We hope that a student already has a foundation of knowledge In certain areas, such as basic mathematics, etc.., So that we can use that to teach them about forces, motion, energy, and other fun stuff in intro physics. Then, after they understand the basic ideas, we show them the same thing, but with more complications added to it.

The same thing occurs when we try to help a student doing a homework problem. We always try to ask what the student know already, such as the basic principle being tested in that question. Does the student know where to start? What about the most general form of the equation that is relevant to the problem? Once we know a starting point, we then build on that to tackle that problem.