Friday, October 28, 2011

Idiosyncrasies of Indian Traditions

There are many beliefs in India due to spiritual traditions which have transcended their destination. Most of these beliefs has become common place followed by enmasse and have no reason any in this sense. Here are a few common beliefs and reasons why they are misconceptions which should not be practiced by the people.

Belief: Hair should not be cut Tuesday.
Misconception: the continuous time physics world, there is not like Monday and Tuesday. Imagine if shop a barbers is located on the line Dateline. A customer will see time as Monday, and the other will see time as Tuesday. It think it's perfect haircut and others will think that it is not.

Belief: You may not satisfy a widow when traveling some where.
Misunderstanding: A passenger driving drunk and primer travel eruption is prone to kill himself. Even if it bumps in a widow, it is unlikely that it will be to avoid killing in large part because of its own shares.

Belief: The cawing of a crow foreshadows a visitor to your home.
Misconception: parsing events are two vital distinctions, one is the correlation and another cause to effect. Two independent events can be correlated, but one cannot be the cause of another. The event, such as the arrival of crows and the arrival of visitors may be correlated, but there is no evidence that the cawing of crows caused visitors to come home. Does this mean that when a crow does pas CAW visitors will not come or when crows CAW visitors are bound to happen. Imagine if the crows CAW during a storm or a hurricane when roads are severely damaged. Nobody can drive or cross roads.

Indians should throw these popular beliefs that do not have a rational basis for occurrence. A majority of these features is irrational and especially cultural even though they may not be factual.

Wednesday, October 26, 2011

How do cranes work? Part III - the Science behind the Construction

Now to the third part of our series on the science behind construction cranes, in which we will examine the role of the hydraulic cylinder. The first two parts describes briefly how levers and pulleys, respectively, contribute to crane lifting force. Subsequent and final section will be perhaps the most important scientific principle in lifting strength maximization: mechanical advantage.

What is a hydraulic jack? The simple answer is sealed cylinder or a circular Prism, which is entirely filled with some type of liquid, usually an oil with two openings for two pistons. The pistons can be connected to the bottle in various configurations.

If we assume that the pistons are the same size in a hydraulic cylinder and there is no friction when a piston is pressed down, another will go upwards with equal force, speed and distance. Thus, if a compresses a piston downward in two centimeters, another piston should depress centimetres two upward.

The advantage of this system allows you to easily redirect forces. A fixed piston can horizontally move another piston attached vertically, while other machines are not such easy translation of direction, we have seen with pulleys and levers. With levers and pulleys, force down will force moving upwards and vice versa, and a force right will result in a force on the left and vice versa. Hydraulic cylinder can be a force in a direction to be transferred in all possible directions up, down, forward, backward, left or right.

Hydraulic cylinder can multiply the forces by maximising torque, as we saw with the lever and the pulley. If a piston has an area of 6 units of squares, and another has a piston 2 units square, the force to push down on the smallest piston will appear 3 times greater on the larger piston. For example, if it pushes the piston 2-square-unit downwards with a force of 500-pound piston 6 square unit to receive boost with the strength of 1500 books. However, the distance the larger piston moves is 3 times less that the distance moved smallest piston to create force 1500 books.

Similar to the lever and pulley, almost all cranes are also using hydraulic cylinder in one form or fashion. The crane can be used a hydraulic cylinder to lift the load directly, but a hydraulics can be used to down a crane arm or move a jib or beam that carries the lifting mechanism.

In conclusion, the hydraulic cylinder is quite similar to the pulley and the lever for its frequent use cranes and its manipulation of the couple. However, the hydraulic cylinder distinguished due to its ability to redirect forces different plans. However, all three, the lever, pulley, and hydraulic cylinder collectively maximize the mechanical advantage to lift large objects. In the next article we will examine exactly what mechanical advantage is and how it is applied to the cranes.

Monday, October 24, 2011

Good Science Fair projects - two problems for Parents

To find you looking elementary science teacher in a project can be challenge. There is science teachers to give everything just good science fair projects to send home with students to do. Younger categories the class as a whole could do the same project. In the second or third year they may send home a list of projects to choose from. Older grades can get a specific topic and specific choices of Web sites to use. In middle and high school, they probably are on their own, send in the subject requirements and let them find their own. In addition to this, every teacher you run across will treat all slightly differently.

Here are two of the biggest problems parents face with good science fair projects for their children.

Problem # 1 is misunderstanding of the assignment.

Nine time out of ten, everything that is clearly stated on the science fair assignment sheet sent to the home page. Many schools also have these things posted online. It is very important that the parent reads this carefully. This is true even for college students. You want to make sure that they project selected matches the assignment. Fortunately and teachers make you do what you have chosen in for approval, but you get the least is happening.

The most common error to avoid is choosing the wrong type of project. Most of the projects fair good science are investigations that require an experience where collect you data and draw conclusions based on your results. The most common type of project found online on the other had are based demonstration project. Sometimes these may be the same, most of the time that they are not.

Problem # 2 is the time factor.

It is always wise for parents have some sort of head up when these things are coming so that they can organize schedules. The trick to teachers is not giving too much time because people procrastinate is a reality. If there is a need to balance everything out.

At home, no experience must be worked in the rest of duties for the other classes outside of the home commitments and whether parent supervision is necessary, as with most projects of the elementary school parent's schedules. Work on projects just good science must the same importance placed on the calendar, such as sports team practices.

By combining these two problems, you can see how by reading the assignment closely in advance, you can go out and get the documents you must have on hand so when it comes time to start, it may be completed at the time that you earned.

Friday, October 21, 2011

Conservation of mechanical energy to education

Now, I go to the conservation of mechanical energy. Again, I'll show you how I explain the solutions of the physical problem in terms of fundamental principles. As always, the statement of principles will be the first line of the solution to the problem. The problem that I have chosen to illustrate the method requires the application of the second law of Newton and mechanical energy conservation.

Notation I used of this series described in the preceding articles, specifically "kinematics of teaching", "Teaching the second law of Newton" and "the problems of labour-power."

Problem. A small box of mass m starts rest and sliding down the surface friction of a cylinder of RADIUS r-free show box leaves the surface when the angle between the line of radiial in the box and the vertical axis is th = arccos(2/3).

Analysis. The box is just affected the frictionless cylindrical surface, exercising a normal force outwards n on it. The only other force on the box is its weight MG. Box moves on a circular path, so we apply Newton's second law in radial direction (positive outward). With the help of a free body diagram, we have

... Newton's second law

... Sum (fr) = MAr

...-MGcos (th) + N = M(-V**2), r.

Since the cylindrical surface can only push (he can not draw), box cannot remain on the surface, unless force normal n is greater than zero. As a result, box leaves the surface at the point where N = 0. Since the last equation corresponds to

... cos (th) = (V * 2) / RG.

But this tells us much if we do not know the speed v box, we are going to see what we can learn from the application of the conservation of mechanical energy. We use a framework co-ordinated by inertia with axis y vertical and the origin at the center of the circular cylinder. Assimilate us mechanical energy box at the top of the bottle and the time it leaves the cylinder. The initial position of the box is Yi = R, its muzzle velocity is Vi = 0, its final position is Yu = Rcos (th) and its final speed is given = V, speed when he leaves the surface. Now with the conservation of mechanical energy.

... Mechanical energy conservation

... (IVM * 2) / 2 + MGYi = (MVu * 2) / 2 + MGYu

... (M0 * 2) / 2 + MGR = (MV * 2) / 2 + MGRcos (th);

therefore... 2 * V = 2 GR (1 - cos (th)).

Finally, connect this result in cos equation (th) that we found earlier, we

... cos (th) = 2 GR (1 - cos (th)) /RG = 2 - 2cos (th);

and... Th = arccos(2/3).

Dr. William Moebs is physical retired professor who has taught at both universities: Indiana - Purdue Fort Wayne and Loyola Marymount University. You can see hundreds of examples illustrating how stressed the fundamental principles by visiting physical support.

Article Source: http://EzineArticles.com/?expert=William_Moebs

Monday, May 9, 2011

Tube digestif and TOE at a time?

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To develop a new paradigm you must be fully acquainted with the well-known accepted laws of physics. You would also need to know and notate the instances wherein these laws did not mesh with the latest experiments. In taking this approach you should list all the known issues and contradictions within the Standard Model. You may optionally include this model's failure to explain parapsychological phenomena; Although most theoretical physicists are not concerned with that. If you work diligently, you should end up with about 15-18 from on your list. They should include the usual suspects and perhaps a few on the periphery of science. For the typical items you would likely include problems like the conflicting experimental results of astronomical measurements concerning dark matter and dark energy (i.e., wherein observation of the rotation of galaxies suggests that the gravitation force holding them together is significantly greater than what can be accounted for by our laws and comments). You may also elect to include the current theory of gravitation needs that a more fundamental explanation.


As well, you should note that measurements of the speed of recession of Galaxy reveals that our universe is not just expanding... its rate of expansion is accelerating. You should also include science's inability to combine general relativity and quantum theory, along with the need for a theory which provides a unified explanation of the existence of the various particles and forces (a major objective of superstring theory). I would suggest that you also add to this list an entry stating that the values of the fundamental constant which make up the Standard Model of fundamental particle physics seem rather arbitrary and quite unrelated. Of course, you MUST include The Standard Model inability to explain Aspect's experiments. You also should consider throwing in a few fringe issues, such as the apparent instant speed of gravity.


After compiling such a list you should then consider and reflect upon the fundamental scientific and philosophical problem within the foundation of quantum mechanics: i.e., what is reality? I suggest this addition because the response of mainstream physics is the Copenhagen Interpretation, which essentially states that until some measurement is made on it, the existence of an entity remains in question; However, that doesn't really answer the question. At the conclusion of this exercise you should have amassed quite a list, with as many as twenty items. That is step one.


The next step is to spend sufficient time contemplating a new model that solved all of these issues by mass, and spend your time performing this exercise while concurrently reviewing theories that others have been coming up with to solve these issues. What you will likely find is that most of the proposed theories have two things in common. First, most new theories add to the complexity of nature's laws (this is contrary to the logical direction of unity); Second, and more important perhaps, none of them attempt to address all of the problems at once. If you take a piecemeal approach you will find that it will likely lead to other problems; ERGO you should seek an inclusive, comprehensive theory.


With all of this in mind, you may well find that your best option is to, in effect, mentally construct a model of nature that works within all the scientific measurements and experiments. This tact will afford you the luxury to entirely fabricate any model of nature you wish so long as it solved the known issues collectively without violating any accepted scientific principles. You are free to invent as many different scenarios of nature that you can imagine, and you should do so at nature's most fundamental form.


However, even with full license to create a new model it won't be easy. You will likely discover extensively issues and run into many stalemates. You would be well served to seek the help of other knowledgeable and practical physicists to help point the countless dead ends you will likely encounter. However, with dogged determination and a lot of trial and error, and with the well-known problems of physics constantly ringing in your head, you just may land upon a successful proposal of nature. To make it work you may need to reinterpret some laws and think outside the box concerning some well-known equations, but you must do so without changing their time-tested outcomes. For example, instead of considering that light travels at "c" and the speed of space as infinite, you could consider the speed of space as traveling at "c" and EM radiation traveling in zero time. You would find that every experiment and every formula based on light traveling at "c" would still work, but it could lead to other views that would help your objective. Also, you could perhaps tip toe around Einstein a bit. For example, instead of gravity being a factor of geometry as Einstein proposed in General Relativity, you could have it follow pure Newtonian Mechanics while adhering to precisely the same behavioral characteristics as Einstein postulated.


Instead of solely a physical universe, you could define physical space as having a complementary consisting of the metaphysical realm. Heck, instead of space itself being fundamentally empty, you could construct a model wherein it was comprised of tiny (The Planck Length-sized) elements. You could call these tiny geometries of space "Spaxels" most smartest pixels that make up your computer screen and TV. You could perhaps combine the concept of Spaxels with that of Zero Point Energy ("EPZS") and consider that this pairing, depending on whether the vibration is circular or linear, understood the realms of the physical and metaphysical. For that matter, instead of considering that gravity is a physical strength, you could link it the realm of the metaphysical and tie it with consciousness. You could call the phenomenon of your creation "gravicon". There are ways of looking at nature differently and thinking outside the box, but all the pieces of your new puzzle must fit.


If you follow this model and succeed, you will have accomplished what no one else has done before. In addition to explaining matter and energy as well as resolving all the issues on your guiding list of known problems, you will have at once created the Theory of Everything ("TOE") and the Grand Unified Theory ("GUT"). The two Holy Grails of physics in one fell swoop...


Of course, your new model will have to make some specific predictions that future experiments will be able to prove or disprove (such as the behavior of equal-sized binary stars). Good luck with your effort.


Joseph e. Donlan, while outwardly a successful business man, is, at heart, a quintessential philosophise. As such, he has spent the last thirty years investigating and challenging the world of mainstream physics and tackling the mysteries of life and science. Donlan holds a BA in English from Northeastern University, undertook graduate studies in Software Engineering with an elective emphasis in Artificial Intelligence ("A.I.") at Boston University, and is currently pursuing his doctorate in Metaphysics. After Software Engineering graduate studies he continued his research into A.I. at a high level of interest and became increasingly incredulous concerning the direction that a. i. research was headed. His skepticism led him to intensify his investigation of the inner workings of the human brain to more fundamentally understand the very entity A.I. experts are trying to emulate. This examination, in conjunction with the plethora of problems within the laws of physics began a chain of events which culminated with his Ordaining Reality books.


 

Saturday, May 7, 2011

Conservation of mechanical energy and rolling motion

In this article, I show how it is easy to solve the problems of rotational motion of fundamentals. It is a continuation of the last two articles on rolling motion. The notation used is summarized in section "teaching dynamic rotation. As usual, I describe the method in terms of an example.


Problem. A solid ball of mass m and radius r is rolling through a horizontal speed v surface when it encounters an inclined at an angle th. Distance d along the inclined ball moves to stop and go back down? Assume that the ball moves without dragging?


Analysis. Since the ball moves without dragging, mechanical energy is conserved. We will use a frame of reference which the origin is a distance r above at the bottom of the slope. This is to centre the ball as it starts up the ramp, SW = 0 Yi. When assimilate us the mechanical energy of the ball at the bottom of the slope (where Yi = 0 and Vi = V) and to the point where it stops (Yu = h and Vu = 0), we


Mechanical energy conservation


Mechanical energy = mechanical energy final initials


M(VI**2)/2 Icm(Wi**2)/2 + MGYi = M(Vu**2)/2 Icm(Wu**2)/2 + MGYu


M(V**2)/2 + + MG (0) Icm(W**2)/2 = M(0**2)/2 Icm(0**2)/2 + MGH;


where h is the vertical displacement of the ball stops on the slope at the moment. If d is the distance the ball moves along the slope h = d sin (th). This insertion with W = V/R and Icm = 2 M(R**2)/5 in energy equation, we find, after some simplification, the ball moves the slope distance


d = 7 (V * 2) / (10Gsin (th))


to rotate and position downwards.


This solution of the problem is exceptionally easy. Once again the same message: start all solutions of problem with a fundamental principle. When you do, your ability to solve problems is greatly improved.


Dr. William Moebs is physical retired professor who has taught at both universities: Indiana - Purdue Fort Wayne and Loyola Marymount University. You can see hundreds of examples illustrating how stressed the fundamental principles by visiting physical support.


 

Thursday, May 5, 2011

My family, the solar system

Off into the sky, far out in space, sitting there, just us watching, at the same time make us a mockery. This big ball of flame, dashing, gas and radiant with all its glory. The Sun, the biggest and baddest of all human beings rounds in space, though, most grand and baddest of our solar system.

We never tried to approach him? We would if we could. He intentionally pumps up its photosphere (visible surface of the Sun) in a 6 unbearable, 000?C! This is ridiculous! It is as it hogs all the space around him and ensures burn all intruders. What is he hiding? There any treasure he wishes behind his chromosphere (inner layer of sun). He is hiding something so valuable that it requires a wall (core) consumer, 000?C protect? ?

Do you began his gigantic; size It has a diameter of about 1,400,000 kilometres! I mean, come, what is the need to grow than grand? He needs to lay off nuclear fusion (source of energy from the Sun).

He intimidates planets, my brothers, worshipping him. We are forced to run circles around him all day and night. Took the trap we, mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto in its gravitational field too large. Well my brother Pluto is no longer a planet because Sun decided it was more good enough to rotate around. Gravity keeps us off, but he also lets fly and met a black hole, so I guess it's good.

I pity too, that the Sun is not all bad. Sometimes it gives us something nice to look at when he will go to sleep, you know... sunsets. Hey, sometimes, it even gives us. as aurora lights (Northern and southern lights) wow.

It gives us vitamin D, which helps our bones and teeth.

It heats up our planet, our Green Earth, day and out. Without this heat, we we will do a toast, nah, we either frozen!

The Sun is at the source of all life, no heat, no life. It is about responsible for the oxygen we breathe, it allows their photosynthesis, plants and as a result, we can breathe!
It is almost an endless supply of power, that is, if we decide to use solar panels to harvest the power.

It controls and maintains our climate. Storms, hurricanes (also called cyclones and typhoons), tornadoes and thunderstorms have all given some, if not to the credit of the Sun. I am sure that many people did not know this, but the Sun is responsible for our wind. Amazing right?

I guess that the Sun is a cool dude, not really, but it does help me. It also helps those who depend on me stay alive. In fact, the smallest living on me believe that the Sun is set to blow up in about 4.7 million years. I suppose that any good thing has come to an end.