Century 21, could this be the last century for the Homo Sapiens? According to the astronomer Seth Shostak, this century will see the birth of a different human specie. In his publication, Seth tell us about his thoughts about what will give us this century. This century will be witness of the last steps from Homo Sapiens. It will have not only relevants social changes, like in before periods, and the big transformations won´t start in the wake of autodestructivas threats wich are in many pages of the newspapers and encourage to continue endless discussions. The three main inminent process are more deeply and not necessarily bad. 1) Designer babies: In this century, we are going to finish know the molecular biology. Less than 60 years, we discovered double helix, and now,for a hardly more than a kilobuck, you can sequence all the genome of your yorkie or yourself. Also, the interaction between science and technology will be apply for threat disease and looking for improvement our specie. Hot-rodding our children is as much on the horizont as the morning sun. 2) Houses in the space: On the other hand, the Earth is running out of resources, not only petrol, also copper, zinc and platinum. This fact, will leads to the search of the resources into the nearby space. And althought all the world expects our progeny colonices the Moon or Mars, for Seth the most plausible solution is building orbiting habitats in wich you can live without a spacesuit.It will be like the International Space Station but a few thousands more bigger. The social and physic environment will changes and with that, we will too. 3) Machines humans or vice versa: But, before this happens, the development of the Artificial Intelligent will bring us machines wich will realize the same work as the humans. Our designer babies will be transform our species even faster. "We are to be able to have children as different from us as a dog of a gray wolf" sentence Seth. Maybe, we are to be able to enact our culture and yourselfs coupling chips in our brains or uploading our brains in the machines, but we can to be sure that the result won´t the Homo Sapiens as we knew it in the last 50000 years.

Roy Sullivan: the man of the seven rays Roy Sullivan is a record man. Definitely, it had been reached for seven rays and survived in all ocassions, convert this man in a myth in the world of the ray´s survivors and he entered in the Guiness record. But, unfortunately, his history didn´t finish good: he commited suicide in 1983, when he suffered a deeply depression because he was know like "the lighting rod man". This is the whole history: He was a forest ranger in a Virginia´s wood. All started in april of 1942, when he was at the top of a firewatch tower which was recently building and didn´t have lighting rod.A big storm started and rays began to hit in many ocassions the tower. When he was run out to the tower, he had very bad luck, because a ray hit in right leg and went out on the foot, producing a big hole in his shoe. In july of 1969, a second miracle in the life´s Roy was produced. When he was driving his Van, with his window open, a ray hit in a tree, was deflected, got in the car throught the window and impacted in the body´s Roy. He was knocked unconscious, his eyebrows, eyelaws and hair were burned, and trigged that the Van still circulated uncontrollably.The Van stopped on the edge of a cliff. In 1970, when he was in his house patio, other ray impacted in a nearly transformer, was deflected too and hit his shoulder. In 1972, four ray impacted in a body´s Roy when he was working in the wood. His hair was burned. After this, he began to think that a extrain force was producing his attraction for the rays. In 1973, five ray impacted in Roy. It happened when he was driving his car and a storm began in the Virginia National Park. He shelted inside of the car, and got out of the car when he thought that he was safe. Then, the ray hit him. The penultimate ray hit him in 1976, when he was in the field. He ran as fast as he could, but ray hit him in the ankle. The last ray was in 1977, when he was fishing. The ray hit his head, through his chest and went out to his stomach, and he didn´t die neither. He was started to be knew like "the lighting rod man" and his wife received a ray too when she was hang out his washing, and she was next to his husband. In 1983, he commited suicide, when he was in a deeply depression, he caught his reglamentary weapon and shooting himself. Everyone turned his back, included his own wife. Thanks everyone for reading, and I hope you enjoyed this history!

Letter to a British friend (2) On this time, I have to answer a letter from a British friend in which, she say that she will visit my country next year in a school trip, and she would like to know what is the best time to visit my country and what are the best activities or the more interesting activities for teenagers to do in my area. This was my answer: Dear Anna: Thanks a lot for your letter! How are you? I hope you are very well. It´s fantastic that you are going to travel to my country!, your school is very kind! Anyway, answering to your first question, I think the best time to visit Spain will be in summer or maybe in autumn, because there are many routes to the villages with many lakes,mountains and rivers, and the trees and flowers are blossom! It´s so beatiful! and if you don´t like the camp, you will be able to relax in one of the most and better beachs in the world! In Madrid, you can do all activities you can imagine, however, be careful with high prices! The best activities are the multiple guides visits in a lot of museums, go to the cinemas and prove a multiple choice of food in many restaurants! I love to hearing from you soon! Best wishes!

True or false: Do we use only 10% of our brainpower? "Only we use a 10% of our brainpower" is a false mistakenly expression atributted to Albert Einstein. We use the whole brain, is a proven fact, and say otherwise is a false myth. Only in a case of a neurological damage, we can reduce our neuronal capacity. This myth have originated at the beginning of 1900, with many writings of people who don´t understand or misread the neurological researchs. Also, it is believed that the beginning was by the psychologist and philosopher William James, when he wrote in his publication: "the energys of the men" that "we are using a small part of our physical and mental resources availables" The neuroscientists have presented two arguments for prove that myth is false: 1) The encephalogram shows that all regions of the brain are actives when we are doing routinary activities like walking, speaking and listening music. 2) People who suffered a myocardial infarction or accident probably don´t present any difference, but this is false, because is proved that all areas of the brain with damages generate consequences. An extra fact is our brain consume 20% of the corporal energy. Evolutionarily, it would not make sense destiny so much energy for so little brain capacity.

Letter to a British Friend This is one part of PET exam, on this part you have to write a letter in answer to a British friend. In this case, he told me everything about her favourite subjects in school and she asks me what are my favourite subjects, why, and what would I like to study in the future. This was my answer: Dear Emma: Thanks for your letter! How are things? I hope you are very well. I´m writing to you because I would like to tell you everything about chemistry and biology and explain to you why are my favourite subjects!. Chemistry learns to you how are the atoms, periodic table and characteristics of elements. Afterwards, you will learn how are the reactions between molecules. There are two mainly parts on chemistry: Inorganic and Organic chemistry. Organic chemistry shows the Carbon reactions in particulary. Is fascinating! Biology is the other subject I love it! Is the life´s science. Isn´t it? You can learn about a lot of things: enviroment, biochemistry, body human metabolism, molecular biology (this part include DNA, RNA, genetic and other fascinating things). In the future, my dream is to become study medicine. Particulary, I would like to specialize in oncology and treat patients with cancer!. I look forward to hearing from you soon! Love, Jorge.

Letter I´m studying for PET exam, and I´m trying to improve my writing skills to get the best possible mark in this part. I have choosen a exam exercise in which you have to write a informal letter to a friend. The letter must to have 100 words approximately. Exercise is this: This is a part of a letter you receive from a British friend: "I went to a great restaurant with my family last night. Which do you prefer; eating at home or in restaurants? Tell me about your favourite place to eat". My answer was: Dear Peter: Thanks for your letter, lovely to hear from you.I´m glad to hear that you were in a fantastic restaurant yesterday! Anyway, I´m writing you because I would like to explain you why I prefer eat at home. First of all, if you eat in restaurants, you will pay so much for a few food!. It´s great for a party, for a birthday or other events, but eat daily in restaurants it´s so expensive. Second, the food isn´t as good as home food. Chefs use the same oil for many foods for save up money. It´s common you have stomachache after go many times to the restaurant! I hope to hearing form you soon! Best wishes.