Paper Space Plane

AIRCRAFT Japanese paper is expected to penetrate the Earth's atmosphere from space luar.Namun, difficulties team predict the location of aircraft landing paper.

Japan's space agency JAXA (Japan Aerospace Exploration Agency) in cooperation with the experts of paper folding art of Origami Airplane Association Japan (JOAA) to design a paper airplane to be launched from the international space station ISS to Earth. This is not a project mainmain.

JAXA experiment was to examine the design of the space shuttle future more secure and efficient. JAXA had already done the simulation in a hypersonic wind tunnel at the laboratories of the University of Tokyo. As a result, a paper airplane that has a length of about three inches wide and about five centimeters was not destroyed when shot with a speed seven times the speed of sound (Mach 7).

And at such a high speed, the aircraft must withstand heat up to 200 degrees Celsius.Kondisi in laboratory conditions similar to those experienced when flying a paper airplane from space through Earth's atmosphere. "JAXA has budgeted 90 million yen (approximately Rp 8, 1 billion) to finance research paper airplane for three years," said JAXA scientists Hidehiro Akashi.

Study leader Professor of Aeronautics and Astronautics the University of Tokyo said Shinji Suzuki, a paper airplane-making idea is actually already appeared ten years ago. "At first, we considered crazy for wanting to make a spaceship made of paper.

However, we proved our idea is not at all silly as a paper airplane could withstand the heat when it penetrates the atmosphere, "said Suzuki. Suzuki explained, paper airplane made of paper made from sugar cane fiber that resists heat, wind, and air.Kertas cane fiber is then sprayed with a special coating liquid and then folded like the shape of the U.S. space shuttle.

The folded paper airplane by Chief JOAA Takuo Toda. Art of paper folding experts spent 18 months to make the most appropriate design. That paper airplane folded from a piece of paper with no cuts and perekat.Toda've tried hundreds of designs before getting the final version is ready to fly.

Suzuki and Toda argued, paper airplane now has a good aerodynamic design to reduce air friction when penetrating the Earth's atmosphere, which is one of the most critical stages in the mission shuttle flights. Without proper aerodynamics and heat shield formidable barrier, the shuttle will burn out when it penetrates the Earth's atmosphere from outer space.

Suzuki confirms, paper airplane pilot will pave the way creating an extra lightweight spacecraft used to study the upper atmosphere. Paper airplane is planned to be launched from the ISS when the U.S. space agency JAXA and NASA have completed installation of Japan's Kibo space laboratory at the ISS, ie in 2010.

"The biggest problem today is landing. Because the plane is so light, the plane would have blown away the wind when it enters the troposphere, "said Suzuki. Suzuki explained, the research team had to consider planting a small transmitter on the paper airplane to facilitate tracking. However, it has increased the weight of the transmitter plane that makes the aircraft difficult to penetrate the Earth's atmosphere.

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9:19 PM | 0 comments

Danger of Using Mobile Phone for Children Under 12 Years

Effect of cell phone signals on health have often debated. This time, the emerging research on the effect of cell phone use in pregnant women to his future behavior.

According to a new study published in the Journal of Epidemiology and Community Health, the baby in the womb could be at risk of developing behavioral problems if you treat the phone in a way that is not appropriate. For example, keep the phone in your pocket or close to your belly bulge. Because the baby in the womb are exposed to mobile phone signals were 30 percent more likely to have difficulty behaving until the age of 7 years.

One of the researchers at the UCLA School of Public Health, USA, Dr Leeka Kheifets, said that a study of 29,000 young people found that more than 10 percent of children who are exposed to mobile phone signals while still in the belly of a mother who did phone calls at least four times a day . Nearly half of the mothers to enable cell phone all the time, and about a third of children using cell phones before the age of 7 years.

"We are concerned that early exposure to cell phones could carry a risk," said Dr Kheifets.

Behavior problems in children are generally classified in psychosocial disorders, habit disorders, anxiety disorders, and disruptive behavior. Psychosocial disorders, among others relating to emotion, aggressiveness, which could interfere with her relationship with her friends at school. Habit disorders such as nail biting, hair pulling, thumb sucking, stuttering, and so forth. Anxiety disorders is quite disturbing because the child may develop obsessive compulsive disorder, social phobia, depression, or other disorders caused by certain situations. The disruptive behavior such as tantrums behavior due to anger or frustration and attention deficit hyperactivity disorder (ADHD).

One government adviser in English at the impact of cell phone radiation, Professor Lawrie Challis, said that children should not use mobile phones at least until the age of 12 years. But in reality, more than half of children under 10 years turned out to have a cell phone.

These findings support previous research, which examined data from 13,000 children and apparently produced similar findings. Nevertheless, David Coggon, professor of occupational and environmental medicine at the University of Southampton, said that the cell phone is not to blame.

"The pattern of the results of this study indicate that the increase in behavioral problems that may be caused by other factors, rather than the use of cell phones," he said.

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9:29 PM | 0 comments

Beware Blackberry Trigger Face Wrinkles

Following the announcement of the World Health Organization (WHO) on the impact of cell phone radiation, now turn the Blackberry is claimed as triggers wrinkles. Really?

A surgeon in the United States, Dr. Jean-Louis explained most women spend a lot of time to squint in order to see the screen Blacberry giving rise to tension in the area around the eyebrows, eyes and face.

"This phenomenon is visible to anyone who routinely check cell phone, a case of the iPhone and Blackberry," he said.

Therapist of London, Nichola Joss, who has worked for Keira Knightley and Scarlett Johansson, also said the same thing. According to him, during the 18 months he's seen big changes occurred in the eyes of the patients who regularly use the Blackberry.

As quoted from the New York Daily News, a beauty salon in Manhattan has a special treatment that is named "BlackBerry Facial".

Is Paul Labrecque Salon and Spa offers treatments for U.S. $ 200 or equivalent to Rp1, 7 million to reduce lines and folds around the neck due to overuse Blackberry.

Meanwhile, Joanna Czech, a cosmetologist who developed facial Blackberry say the treatment is suitable for anyone who wants to have healthy skin and look fresh, especially in the neck.

Czech recommend four or five treatments to get maximum results. He also revealed other effects too often use a BlackBerry, which is acne.

"I can instantly know which side of the face of a person used to call by looking acne," he said.

It takes 45 minutes to perform this treatment. Consists of cleaning, peeling using sapphires, serum and drainage applications limfatik.Perawatan ends with irradiation for 20 min using LED light and microcurrents, and coated oxygen mask.

So be careful. Tendency to squint to see the Blackberry every time very big impact cause premature wrinkles, especially to the young woman.

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9:27 PM | 0 comments

World's Smallest Helicopter Flight Successfully

The world's smallest helicopter that only charged one passenger has been doing its maiden flight for the first time in the birthplace of Leonardo da Vinci, da Vinci was an idea which was instrumental in making the design helicopter.

The world's smallest helicopter weighs only 75 kg, helicopters make a demonstration flight in the hometown of da Vinci, near Florence, according to a Japanese manufacturer Gennai Yanagisawa (75).

"From the first time the concept of helicopter came from Italy, I always imagined it to be able to fly the birth place of da Vinci," Yanagisawa said. "I like being welcomed ancestors. I hope da Vinci also be satisfied, "said Yanagisawa, Wednesday (14/5).

Yanagisawa said go where da Vinci's birth in February and has received permission from Mayor Dario Parrini. The helicopter, named GEN H-4 has two motor that can move all directions and can fly at a maximum speed of 50 km per hour.

Guinness World Records in February stating this is the smallest helicopter in the world with only one person.

Leonardo da Vinci was born in Vinci in 1452 and spent several years of his life there. He was the first sketch to the helicopter he made ​​in 1493 and discovered in the 19th century he made a sketch plane to fly vertically.

Yanagisawa run company in Matsumoto, north of Tokyo helicopters engaged in the sale. Currently it has sold five units in Japan and two for customers in the U.S.. The world's smallest helicopter is valued around six million yen, or about U.S. $ 58,250. (OL-2)

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9:12 PM | 0 comments

This is the danger Toddler If Joy Playing iPad

Children today are more skilled use of various gadgets. No wonder if it is not even a 2 year old child had been fond of playing a variety of exciting applications and games on the iPad.

Special applications for toddlers are now widely available, such as Baby Touch: Peekabo or Fish Games, an average claim charged educative. Some even promise useful applications to improve hand-eye coordination and focusing ability of infants to toddlers age 2.5 years.

The parents were not afraid to let their baby fun tinkering with gadgets because they can make them quick smart kid. Preoccupation of children to parents also used the gadget for a moment to rest or do something else. The term is a digital babysitter.

However, is that what the iPad as safe for children's development? Recently, experts from The American Academy of Pediatrics (AAP) recommends that parents returning to limit the time they are toddlers, especially those who are younger than 2 years old, in front of the television screen.

In published reports, the researchers found that TV time is too long will interfere with "the talk" between children and parents, which is very important for speech development of children.

Are the effects of watching TV too long to play a iPad? It is not yet clear. "We do not have the data," said dr.Ari Brown, pediatrician and member of the AAP.

Effects that may arise depending on the way of use. According to Tanya Altmann, a pediatrician and author of Mommy Calls, your child should be the same when using the iPad as a guide to television.

"Basically, the iPad app is the latest version of the video game we often play a young child. Because it may not be much benefit to the child, "he said.

Besides applications in advanced gadgets that are considered not to teach children the skills crucial as they can get from the world of three dimensions.

"There is a game application building blocks, but of course we do not want this to replace the real thing. Babies have to learn from the real world, "said Dr.Dimitri Christakis, director of the Center for Child Health, Behavior and Development, Seattle, USA.

Although the experts agreed about the benefits of a toddler playing gadget, but for older children it's proven applications educational games can have a positive impact. In a study by the U.S. Department of Education Martha Speaks proven applications in the iPhone improve your vocabulary children aged 3-7 years to 31 percent in two weeks.

Rose Luckin, Professor of the University of London, find gadgets such as tablet PC could increase social interaction central to the learning process. He found children aged 5-6 years who recorded the daily activities at the school on the tablet PC and show it to the parents, tend to learn better.

"The positive benefits of technologies like the iPad is able to increase the focus on communication between parents and children," he said.

Also according to Luckin, use moderation is key. "If the kids just sit for hours playing with the iPad, I'm not sure he will be able to benefit. This tool can enhance parent-child interaction, not just away, "he said.

If parents only had limited time with their children, experts advise to turn off gadgets at home rather than let their children engrossed alone.

"We know that parents can not be with my son 24 hours. But at certain times of restricted we can let children explore their own game. We can not let him be stimulated externally at any time, "says Altmann.

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9:25 PM | 0 comments

Ready Apophis hit Earth in 2036

In Egyptian myth, Apophis was demons that cause destruction, to bring eternal darkness to the world.

A fitting name, according to the astronomers, for the chaos that will hit the Earth from space. The experts are looking at 390-meter sized asteroid discovered June 19, 2004 that have the potential to collide with the planet, and continue to remind the government to act.

NASA has estimated probability for this asteroid to hit Earth in the year 2036 will release more than 100,000 energy atomic bomb that was detonated at Hiroshima. Thousands of square kilometers would be directly destroyed Earth region but the whole Earth will experience as a result of the effects of dust flying into the atmosphere.

And, experts say, there is little time to make decisions. At a meeting for Near-Earth Objects (NEO) in London, scientists say may take several decades to design, test, and create the technology necessary to change the direction of the asteroid. Monica Grady, an expert in meteorites at the Open University, said: "This is not a question of when, or if, an object crashed into the Earth. Many of the smaller objects that hit Earth but was destroyed in the atmosphere and we did not suffer. But for NEO objects larger than 1 km (width) will hit Earth every few thousand years and a NEO is more than 6 miles would destroy the life of the Earth, every few million years. We are in for a great time.

Apophis asteroid is one that continuously under the supervision of NASA, because it has the potential to hit Earth. Apophis, also known as 2004 MN4 until late 2004 is still a possibility of a collision with the asteroid highest in 2029. But in early 2005 radar data showed a decrease possibilities. And a few months later, the possibility of a collision in 2036 also degenerate and eventually reach the ratio of 1:45000

A 13-year-old junior high school who managed to correct the Apophis asteroid collision calculations. Collisions which NASA originally estimated to rise 1:45000 comparison because Apophis is expected to hit one of the satellites that circle the Earth.

Nico Marquardt Calculations show on October 13, 2008, during a meeting nearest to Earth, Apophis would have the possibility of bumping into one of 40,000 existing satellite and orbit changes. The changes will take place again in 2029 as it approached the Earth because re Apophis is likely to experience a collision with a satellite. As a result, in 2036, during a meeting with Earth Apophis will hit Earth likely be 1:450 or a hundred times higher than expected NASA.

Alan Fitzsimmons, an astronomer from Queen's University said: "When he passed us on the 13th of April 2029, then in 2036 he would hit us."



(Illustration Apophis bumped into Earth in the year 2036)

Officially the NASA issued a news release about the possible collision of Apophis. The word also says that Nico Marquardt and NASA has reached an agreement, even NASA has admitted that there is an error in their calculations.

From the office of Near-Earth Object (NEO) Program at NASA's Jet Propulsion Laboratory, Pasadena, Calif., stated that the NEO has never alter current estimates of the possible collision of Apophis. Apophis will still have a low chance of collision with the Earth which is 1: 45000 in the year 2036. Even NASA NEO Program especially from states, the researchers they had never made contact and correspondence with students.

In earlier reports, Nico Marquardt stated calculate the probability of collisions between asteroid Apophis with an artificial satellite during close encounter (meeting nearby) degan Earth in the year 2029.

Unfortunately, in the year 2029 when Apophis asteroid is approaching Earth, it will pass through the area near the main belt of geosynchronous satellites. In other words, the chance of a collision with an artificial satellite so far.

Therefore, consideration of the possibility of a collision with a satellite scenario still would not affect the probability of collisions that have been taken into account at this time, which is one in 45,000.

NASA's NEO program in particular, served to detect and trace asteroids and comets passing close to Earth. They will find and calculate the orbit traces the object to determine whether the incident was harmful to the Earth or not.

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9:10 PM | 0 comments