Respond to the questions on Barabasi: The Sixth Link pp.

1. What is the principal of six degrees of separation? What number of social links does any one person need to be connected to global society? p.30

The principal of Six degrees of separation is that it takes 6 persons to connect two randomly selected persons in the society. Our world is small and we are all closely connected.


2. How is the fabric of society today different from pre-internet society?p.31

We can get infomation so much, so easily, so quickly anytime wherever the internet is.


3.How many more links separate any pair of web pages compared to people in society? What can explain the difference?p.34

The Web has a separation of nineteen.
This is because the nodes have many links.


4. So far, what ranges of separation have network scientists discoverd in different kinds of networks? p.34

species in food webs
molcules
scientists
neurons


5. What does reserch suggest about the fundamentals of networks? p.34-35

If there are more links, there will be less nodes.


6. What is your estimate of your personal number of connections to society? What connections are your strongest?

My connections may be related to education.

Issue Entrepreneurship

1.What is your sticky message?
The education of English should be started in all primary school.

2.Who is your strategic social group?
Schools
Teachers
People of the board of education

3.How will you spread and encourage others to take up your message?
I will write about this on my blog and ask others to link my blog.
I will post my opinion on the webpages which are related to education.

My reaction to Barabasi, Six degrees of separation

It is so surprising for me that it takes only 6 persons to get to one selected persons from the other.
I thought it would take so many persons because our society is so big. However, I feel that the result is not completely reliable because the result was made by only 42 letters of the 160 letters. It is not sure to make results from such small numbers of data. In addition, I have a question that the six degrees of separation can be applied to the world really. I think the experiments in the world should be done.
Anyway, I feel that our world is small and we are connected. In addition, I am surprised by the result on webs. I thought the world of Web was too big for us to grasp. However, in fact, I realized it is a small world. These results changed my thought about the size of our society.

A summary of Barabasi, Six Degrees of Separation

"Six degrees of separation" is the concept which was brought by Frigyes Karinthy. This conept was rediscoverd by Stanley Milgram, a Harvard professor. He did an experiment which proved this concept. The experiment was to find out how many acquaintances would it take to connect two randomly selected persons. The result of his experiment was that it took 5.5 persons to get to one selected persons from the other. This shows that our world is small.

Barabasi and other members did similar experiment on webs. The result was that any it took 18.59 documents to get to one selected documents to the other. This shows that the Web is a small world.

My reaction to Barabasi, Introduction

I was surprised at the story of the hijack of Yahoo. It can not be imagined that Yahoo was hijacked by a fifteen-year-old boy, not by a group of sophisticated hackers in spite of Yahoo's security system.
Paul spread Christianity successfully. There are some key factors of his success. Firstly, he had a "sticky message". His "sticky message" was passed down by generations due to the strength of his message. Secondly, he used the social network efficiently. He walked not randomly. He walked in a way Christianity could spread most effectively. He had knowledge of social network.
It seemd to me that the story of MafiaBoy and Paul were not related at first. However, they have something in common; networks. MafiaBoy used the network of computers. Paul used the social network. The author uses examples effectively to describe that networks exists everywhere and everything is linked to everything to else.

A brief summary of Barabasi, Introduction

In 2000, Yahoo was involved in a trouble which was caused by the MafiaBoy, a fifteen years boy. He had hijacked hundreds of computers and halted the operations of billion-dollars companies.

Paul was a early missionary of Christianity. He spread Christianity by reaching out to the biggest communities to germinate the faith most effectively.

Though there are big differences between Mafiaboy and Paul, they have something in common.
The key of their success is the use of network.

Nothing can happen individually. Everything is connected to everything else. Network exists everywhere. We must cast an eye for them.