Thursday, September 4, 2008

Mobile phone:should they be banned in public places?



Many people have mixed feeling the use of mobile phones in public places like restaurants and cinemas.Wherever they were a;most unknown twenty years ago, these days they are part of everyone's life,and the world would now feel a strange place without them.
One of the strangest argument is favor of banning mobile phones is the annoyance they cause other people.Although people are always asked to turn off their mobile phones when they go to the cinema,you can be sure that the film you are watching will be interrupted by the sound of at least five ringing tones!what is more many people insist on continuing their conversation,even though hundreds of people can hear them!. For this reason many people would welcome a ban on mobile phones in places where they might irritate other people.
On the other hand there re a number f arguments against such a ban. It is really difficult t o stop people bringing mobile phones into public places, and therfore it wold e virtually impossible to enforce any ban. Some people would see this as an infringement of their rights ,while other people would say they need them in case of an emergency. And despite being asked to turn their mobile phones off,some people insist on leaving them on, or simply forget to silence them. Perhaps the most important point is that, in spite of all the disadvantages, many people these days simply feel that they can not live without their mobile.
It seem to me that a ban on mobile phones would be pointless. People will always find a way round any ban. Nevertheless people should be discouraged from using them in places like restaurants, unless it is absolutely necessary. People should be made aware that it's very bad manners to use them at certain times. Furthermore,there will always be someone who thinks their call is much more important than other people's peace and quiet!.

Modus tollens

The argument has two premises. The first premise is the conditional "if-then" statement, namely that P implies Q. The second premise is that Q is false. From these two premises, it can be logically concluded that P must be false.

Consider an example:

If there is fire here, then there is oxygen here.

There is no oxygen here.

Therefore, there is no fire here.

Supposing that the premises are both true, if there is a fire here, then there must be oxygen. It is a fact that there is no oxygen here. It follows, then, that there cannot be a fire here. An argument is valid if it is not possible for the premises to be true and the conclusion false. (A counter-example demonstrates that Hydrogen gas burns efficiently with Halogen gases like Chlorine and Fluorine and will combust with Iodine, with no Oxygen present.)

Another example:

If Lizzie were the murderer, then she owns an axe.

Lizzie does not own an axe.

Therefore, Lizzie was not the murderer.

Modus tollens became well known when it was used by Karl Popper in his proposed response to the problem of induction, falsificationism. However, here the use of modus tollens is much more controversial, as "truth" or "falsity" are inappropriate concepts to apply to theories (which are generally approximations to reality) and experimental findings (whose interpretation is often contingent on other theories). Thus (to take a historical example)

If Special Relativity is true, then the mass of the electron has a specific dependence on velocity

Experimentally, the mass of the electron does not have this dependence (Kauffmann (1906))

Therefore, Special Relativity is false

Einstein rejected this argument on the grounds that the alternative theories that appeared to be validated by the experiment were inherently less plausible than his own.

Relation to modus ponens

Every use of modus tollens can be converted to a use of modus ponens and one use of transposition to the premise which is a material implication.

For example:

If P, then Q. (premise -- material implication)

If Q is false, then P is false. (derived by transposition)

Q is false. (premise)

Therefore, P is false. (derived by modus ponens)

Likewise, every use of modus ponens can be converted to a use of modus tollens and transposition.

Justification via truth table

The validity of modus tollens can be clearly demonstrated through a truth table.

p

q

p q

T

T

T

T

F

F

F

T

T

F

F

T


In instances of modus tollens we assume as premises that p → q is true and q is false. There is only one line of the truth table - the fourth line - which satisfies these two conditions. In this line, p is false. Therefore, in every instance in which p → q is true and q is false, p must also be false.

Bionics

Bionics is the application of biological methods and systems found in nature to the study and design of engineering systems and modern technology.This is simple technique that is useful for starting creative thinking by try to look for the relationship between problem and solution.


The bionic design is the synthetic techniques to create the optimum, intelligent and eco-adaptable artificialities using the many ideas from the structural, material composition and the birth-evolution process of living things.
Our present research are to create the new design techniques using the neural network system, the genetic algorithms, the artificial life system and mathematical programming method derived from the biomechanics, bionics and human-mechanics.



The "Bionic Car" was a 2005 concept car from Mercedes inspired by a sea dweller from tropical latitudes: Ostracion Cubicus — more commonly known as the boxfish. The concept car's being included in an exhibit called "Design and the Elastic Mind" at New York's Museum of Modern Art. The exhibit's all about "showcasing trailblazing innovations in the fields of design and science. While a concept car that looks vaguely fish-like isn't normally reason for inclusion in an art exhibit, the "Bionic Car" was the first to showcase Benz's Bluetec diesel emission-control technology. As our love affair with diese is well documented, we can't think of a better inclusion to an art exhibit. Full press release after the jump.





Bionic Log William Tremblay
Bionic Log is a pneumatic robotic sculpture built around a section of tree trunk. Inside the log is a bank of pneumatic valves driven by a simple microcontroller program. These valves permit the flow of compressed air to the actuators in the limbs of the robot, which contract in a manner very similar to animal muscles. Although the control mechanism is simple, the resulting motions are very recognizable as human gestures, albeit the gestures of a confused or wounded person. Bionic Log is an extrapolated collision of the conflicting human imperatives of expediency and sentimentality, at once supporting and disproving the comforting notion that technology can solve any problem

Unknown biography


Dam trip



As the picture above,they are brothers as best friend each other. They always come to see each other when someone has a problem. they have the same sense of humor and share many interests ,except that the younger guy's crazy about texting-crazy. He has always text all time.
He do it all time, on bus, in the street.
The younger brother said: I thought texting was much cheaper than phoning, so my brother always angry me when I was not pay attention to him.
Today they go to Singapore for travel around there but all the trip the younger brother did not talk to his brother because he always texting sms to his girl friends!!
Brother was not happy in this trip and brother becomes petulant brother, so he did not talk to his brother any more.

After that, younger brother asking his brother “why you angry me?

Brother said: Am not angry you but I am angry with hand phone noise as it is disturbing me when I was feeling sleepy.



The end.

Rewrite the ending of a story.

To do the creativity-building through writing by using rewrite the ending of a story. Today I would like to rewrite the funny ending of the travelers and the bear.


The travelers and the bear



Two Men were traveling in company through a forest, when, all at once, a huge Bear crashed out of the brush near them.

One of the Men, thinking of his own safety, climbed a tree.

The other, unable to fight the savage beast alone, threw himself on the ground and lay still, as if he were dead. He had heard that a Bear will not touch a dead body.

It must have been true, for the Bear snuffed at the Man's head awhile, and then, seeming to be satisfied that he was dead, suddenly, the bear was screamed and the bear was kissed the man.

After that, the bear was walk away from there.

As soon as the bear was out of sight, the Man in the tree climbed down.

"It looked just as if that Bear kissed your mouth," he said. "What did he tell you?"

"He said, oh!! I love this lipstick color, where you buy it?

I said, I bought it at Alamanda

It said, Oh!! Thank I have to go and buy now."

Moral: Buy a beautiful lipstick color can help you when you are in trouble

mind-mapping


This is good mind-mapping




This is my mind-mapping

A mind map is a diagram used to represent words, ideas, tasks, or other items linked to and arranged radially around a central key word or idea. Mind maps are used to generate,visualize, structure, and classify ideas, and as an aid in study, organization, problem solving , decision making , and writing.

The elements of a given mind map are arranged intuitively according to the importance of the concepts, and are classified into groupings, branches, or areas, with the goal of representing semantic
or other connections between portions of information. Mind maps may also aid recall of existing memories

.

By presenting ideas in a radial, graphical, non-linear manner, mind maps encourage an unorthodox brainstorming approach that can generate ideas without regard for a more formal, hierarchical organization system.

Though more freewheeling and individualized, mind maps are similar to more rigidly-structured semantic network or cognitive maps





Wednesday, September 3, 2008

Define a problem

What is the critical problem? This deceptively simple question is actually one of the most difficult parts of the analysis. Perhaps the most common problem in case analysis is that we fail to identify the real problem

and as a result solve the wrong problem or just a symptom, and leave the original problem unfixed.


Define A Problem

The bigger your problem, the bigger your opportunity. If you find a way of solving your own problem you will also be able to help other people in solving their problems. A problem is nothing negative and nothing to be afraid of.

Words have power. Your mind operates with language, so if you want to change your thought processes and your perceptions, begin by changing the words you use. By replacing the word 'problem' with one of the four suggested options, something magnificent and very powerful will happen, as soon as the problem appears.

1. If you call it a situation, it will calm you down, because a situation is something neutral, neither bad nor good, and a situation can be analysed.

2. If you call it a challenge, it will boost your ambition to accept and to overcome it. Most people love challenges. Life would be boring without them.

3. If you call it an opportunity you change your attitude and your approach. Instead of asking 'How did I get into this?', you will ask yourself 'What can I do to get out of this?', or 'How can I take advantage of it?' or 'How can I benefit from this?' Napoleon Hill claims that every adversity, failure and heartache carries with it the seed of an equivalent or of a greater benefit. Norman Vincent Peale, the author of The Power of Positive Thinking, wrote that 'Whenever God wants to send you a gift, He wraps it up in a problem.'

4. If you call it a lack of decision, you drive yourself towards a solution. You won't focus on the problem any more but you will start thinking about decisions that have to be taken in order to solve it.

Problems are usually a lack of decision. Any problem can be solved by making a decision. Here is one of the most important lessons I learned from listening to Anthony Robbins: 'There is always a third option!' People generally think that they either have no option at all, or that they have two options only. They can see only A or B, yes or no, black or white, etc. You are in a dilemma if you believe that you have two options only. Get out of it by brainstorming more possibilities and start asking more intelligent questions because all questions contain built-in answers.