The secret behind "Smells Like Teen Spirit" (Nirvana's song)

“Smells Like Teen Spirit” was the most famous Nirvana’s songs. It was write by Kurt Cobain in 1991, the front man of the band Nirvana. Kurt Cobain was a big fan of a punk rock band called Pixies, and he was trying to compose a song in the same rhythm of the band, “I was trying to write the ultimate pop song. Basically, I was trying to rip off The Pixies”, he said. This song took the band to the success.

There is a secret behind the title of the song. The title, which looks like a strong phrase for a punk rock band, was nothing more than a reference a famous deodorant that time. The phrase "smells like teen spirit" was write on the wall of a motel where he was staying by Katherine Hanna, the lead singer of the band Bikini Kill. Hanna did this as a kidding because her bandmate Tobi Vail, who was Cobain's girlfriend at the time, was a fan of the Teen Spirit deodorant. “Teen Spirit was manufactured by the Mennen Corporation, which had developed a line of very popular, somewhat "alternative" deodorants for men in the 1960s”. Kurt did not know that the name “Teen Spirit” was a reference to the deodorant; he really thought that was a phrase to express the new generation and the revolution. When Kurt discovered the true meaning, he was upset and humiliated.
The song was write because Kurt was disgusted with his generation`s apathy, his own apathy and spinelessness. Krist Novoselic said: "Kurt really despised the mainstream. That's what 'Smells Like Teen Spirit' was all about: The mass mentality of conformity." The song talks about the teenager’s freedom and the spirit of change. At that time the young people joined the punk scene, and a movement called anarchy to protest, and to fight for their rights, the movement was also known as generation x.

A virus called Variola

Smallpox is an infectious disease caused by the virus orthopoxvirus variolae, one of the biggest virus that affects humans. He was known when a mummy from 1550-1307 BC showed traces of the virus. Upon entering in the human organism, the virus on a given host cell where proteins and their manufacture multiply in the cytoplasm of the same. The body's immune system reacts against the virus by destroying the cells before the virus multiple, but the immune system is unable to completely block the multiplication of the virus because it produces the protein causes the same to be resistant to antibodies.

Disease transmission occurs through contact with sick people and the objects used by the same person. After 14 days of incubation, the disease begins to manifest, the first symptoms are fever, malaise, fatigue, body aches, red spots, vomiting and nausea. The red spots that appear on the skin become purulent bubbles after a period dry and form scabs.

As the disease weakens, the immune system of the individual there is a great possibility of this period, contracting new diseases and infections. How is a disease caused by a virus, there are no specific treatments, and the concern is focused on the consequences that the disease can leave. The disease can be prevented by establishing vaccine immunity against the virus. Currently, smallpox is a disease virtually extinct since a long time does not make victims, however there is concern there chemical weapons with the virus used to kill enemies in combat.

Source: http://www.who.int/csr/disease/smallpox/en/

Alan Turing, The Father of Computer Science

Alan Turing was a famed mathematician and the most important person in field of computer science. He was born in London, England and since a child he displayed signs of high intelligence and early demonstrated interesting in math and science. After high school, he enrolled at University of Cambridge where he proved the central limit theorem and he was elected a fellow at the school upon his graduation.

In 1936 he developed a research about computable numbers and developed the universal machine (later called “Universal Turing Machine”), a machine capable of computing anything that is computable, which is the base for begin of the computer and modern computers. He also studied mathematics and cryptology at Princeton where he received his Ph.D.

As result of his study in cryptology, he contributed with the England Army code breaking the German ciphers during World War II. He also wrote two papers about mathematical approaches to code-breaking.

In 1940 he was ranked in the best mathematicians. He first addressed the issue of artificial intelligence in his 1950 paper, "Computing machinery and intelligence," and proposed an experiment known as the “Turing Test”—an effort to create an intelligence design standard for the tech industry. Over the past several decades, the test has significantly influenced debates over artificial intelligence.

For being a homosexual (homosexuality was banned in the UK at that time), he was sentenced to prison. Avoiding the prison, he opted for an alternative sentence, where he spent one year taking estrogenic to decrease his libido. After much pressure and he be moving away from office, he committed suicide around 1952.

Source: http://www.biography.com/people/alan-turing-9512017#early-life

The Influence of the Social Networks

The social networks are present in our day to day and for being so present, exert a strong influence on population .Many times per day, we has listened about social networks such as latest news, the applications, how to use, their interaction with cellphones, and even with TV.  Everybody knows how strong the social networks are, but how much they can influence society?

The new generation has begun his life using computers, has lived in a fast world, at constant exchange of information, and he, increasingly, has the need to be connected. With that, the social networks increase the number of users every day. This large number of users facilitates the union of the population; the people can share what they are thinking and protest against everything. People are more aware of everything that happens because all the information have been sharing on the network. It is not so easy hide things from people, and if someone do something wrong, especially in politics, they can easily come together and create a manifestation. However, it also has a problem, that freedom of expression ends up facilitating bad intention people who take advantage of the ease of communication to expose bad or false things.

Therefore, with increasing social use and ease of communication, the society has taken a new course; the people have informed more, they are more aware of events and can participate more actively in the decisions of the government, and share your thoughts on any topic. The exposition of ideas and thoughts helps in the formation of an ideal society for all, but it has to be well supervised for well-functioning.