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the birth of the Max Planck Institute researchers identify new organic molecule in space

A group of researchers at the Max Planck Institute for Radio Astronomy (MPIfR) have detected for the first time, a molecule very similar to "amino acid in space.

According to the report in a research journal Astronomy & Astrophysics, the molecule amino acetonitrile, was discovered in a giant cloud of gas called "Large Molecule Heimat" is near the center of the galaxy in the constellation Sagittarius . L-amino acetonitrile has been effectively identified thanks to "help a 30-meter radio telescope in southern Spain. The discovery was later confirmed in France and in Australia by two arrays of radio telescopes with a spatial resolution ten times higher than that of the telescope originario.Quando have made this discovery, astronomers involved in the research project were studying the spectral lines emitted from molecules to complex "internal" Large Molecule Heimat. "Atoms and molecules emit light at very specific frequencies, which appear as characteristic lines in the electromagnetic spectrum. By analyzing these spectral lines, astronomers can determine the chemical composition of clouds cosmiche.Comunque, the more complex the molecule, the more become intricate its radiation, from which the "large number of spectral lines emitted by these molecules. At the same time, these lines are very weak and difficult to identify in the" skein "of spectral lines." Nevertheless, we are finally able to assign 51 very weak lines to the molecule amino acetonitrile "says Arnaud Belloc, scientist and lead author of the MPIfR monografia.Sebbene since 1965, astronomers were able to identify regions in the interstellar more than 140 types of molecules, particularly of organic or carbon for a long time are dedicated to the vain search for glycine, the simplest form of an amino acid. The researchers believe, however, that the "amino acetonitrile is most likely a direct precursor of glycine. "L" identification of the amino acetonitrile has further illuminated our understanding of the chemistry of the hot and dense regions where stars form. I am sure that in future we will be able to identify many other organic molecules, more complex in the interstellar gas. There are already several candidates, "says Karl Menten, director of the MPIfR and head of research group" Millimetre and submillimetre. "The search for interstellar amino acids is crucial to understanding the origins of life on earth, as amino acids are the basic building blocks of proteins, without which there would have been possible the "evolution of life. so far had been identified in amino acids meteorites fallen on Earth, but never in interstellar space.

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's when the stars were born: 500 million after the big bang

From "Il Corriere della Sera

MILAN - On the Origin of the Universe and the first steps have been placed three key points, clarifying the debate so far uncertain. The result is based on five years of observations of the WMAP satellite (Wilkinson Microwave Anisotropy Probe) of NASA who, making a leap over its predecessor COBE satellite, assessed the temperature differences in the cosmos when he was just 380,000 years. These fluctuations measured with microwaves reveal an average of 2.725 degrees Kelvin (absolute zero), that is -270 degrees Celsius and "photograph" what was coming. Already a couple of years ago, the orbital observatory was allowed to establish the precise age of the Universe: 13.7 billion years and to certify the existence of dark energy. Then he gave into account other key issues, but it was the beginning of the work now completed, reveals new evidence.

FIRST RESULTS - The first result provides evidence that a sea of \u200b\u200bneutrinos permeate the Universe. What had been called "cosmic neutrino background", ie the cosmic background of neutrinos, and there really was originally much larger than at present account for 10 percent. The remainder was made up from 12 percent atoms, 63 percent dark matter and 15 percent by the photons, while the dark energy was negligible. The hot and dense young universe was a reactor that produced helium and theories of this process also included a number of neutrinos which has now been confirmed. After the evolution, the situation today is very different present and neutrinos are only 1 percent. Atoms are also decreased (4.6 per cent and this is the visible universe) to which you add a dark matter more substantial (23 percent) as did the entry on the scene in recent times, the dark energy that comes even at 72 percent. Lesson two - The second point concerns the balance of WMAP evidence that the first stars began to form when the universe had just reached the half a billion years. "In the past it was believed that this had happened at the end of a billion years old - says Paolo De Bernardis, who has studied the topic in Antarctica with the high-altitude balloons -. Now the measure has been halved and is an important finding. " The timing is weird because that's when the universe goes dark era. Lesson three - The third, finally, states that phenomenon called "inflation" and explains that as in the first fraction of a second the universe has rapidly expanded and cooled. "So many versions of inflation theory has finally been removed - note Charles Bennett of Johns Hopkins University Baltimore - thanks to which we now have solid data. " "The budget is interesting but not conclusive - De Bernardis known - for example confirmation of nucleosynthesis in the early ages is of great value because it is the same we know today and which governs the nuclear reactions. But the next step will be accomplished with the Planck satellite that the European Space Agency ESA will launch before the end of the year. Then Expect other, extraordinary discoveries about our origins. "

Giovanni Caprara

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Why is the sky blue and the sun is yellow? The company

These two questions are so trivial that seem to have been made by a child. But would you know respond?

The solution lies in the electromagnetic nature of the sunlight.

Visible light is in fact made up of many electromagnetic radiation of different wavelength which together form what we perceive as white.

Each wavelength of light is perceived by a different color.

When a ray of sun reaches the earth meets the atmosphere composed of nitrogen, oxygen, and suspended as steam, water and other particles.
If the light encounters a drop of water, is fully reflected in all directions (colored with white clouds and fog) when he meets while nitrogen and oxygen status gas behaves differently depending on the wavelength of each color: red, which has a longer wavelength, will continue its road, as well as yellow and orange, while blue, which uha less Onga length, will be distributed in all directions and color the sky.

The sky near the horizon is blue because light must pass through more atmosphere and is therefore more widespread.
When approaching the sunset, the sun lowers on the horizon and the light blue and loses further component is disseminated other radiation such as red, which colors the sky.

If there were no atmosphere, the sky would be black (as on the Moon) and the sun would appear white. The indefatigable

Sun is yellow on the same principle: the light of the solar disk, encountering the atmosphere, has a different path depending on the wavelength and color that is popular is precisely the yellow.

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Moko the dolphin: rescued stranded whales

From "La Repubblica"

The expert: "I've never seen anything like it. I tried to push them for days at sea"
The organization of the dolphin Moko: rescued stranded whales' WELLINGTON - A dolphin was able to drive and bring two large sperm whales that had stranded on the beach at Mahia on the east coast of North Island, one of the major islands of New Zealand. The female specimen bottlenose dolphin, which beach goers have nicknamed Moko, was able to communicate with the two cetaceans (pygmy sperm whales) that were likely to die on the beach and taking them away to save them from the mainland. Look at the pictures of Moko "I have never seen such a thing, that's amazing," said Malcolm Smith, an official of the Conservation Department. Smith said Monday that the sperm whales were stranded on several occasions, despite his attempts - all unsuccessful - to get them away from the beach. The whales, a female three-meter and its smaller than a meter and a half, they were disoriented, apparently disturbed by a sandbar near the beach and could not to find the way to the sea. VIDEO: THE STORY OF WITNESSES "For an hour and a half I tried to push them into the sea, but were reluctant to leave the dock," he continued. "They were exhausted," he said, "and I had gotten to the point that I thought would not make it more, I did my best." Then came Moko, used to swim among the swimmers, approaching boats to be caressed and push the nose of the kayak. The dolphin has started to produce sounds and communicate. "Sperm whales are able to establish contact and Moko escorted them about 200 meters to the edge of the sandbar," said Smith, "then did a turn through quite a narrow channel and escorted them at sea.
Since then the two whales were far from the beach at Mahia, where each year some thirty whales get stranded, most of which can not be saved. "I do not know if the next time a whale is stranded we will return to Moko, "said the expert," surely this time he saved the day for us and the lives of two sperm whales. "

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Because if I leave a spoon in the bottle, the champagne is not outgassing?

Here's another odd question to be answered . In fact, the method of the spoon is not foolproof, but it can be a help to slow the loss of gas from the bottle once opened. This system can be used with all soft drinks, and also water, cola, beer, etc..

The system works if the bottle is open, is placed in a refrigerator with a teaspoon of metal stuck in his neck.

Why? Simple. The handle of the spoon, just metal, glass stays colder, maintaining a low temperature air in the bottle. The bubble of air rising from the neck to drink, meet cool area and the principle of Archimedes, would tend to decrease volume and increase in density, falling down.

Over time, however, both the heat capacity of the spoon, and the fact that the bubbles in this up and down can collide and break, the drink will tend However a flat.

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physics inside the car

Here's another question to be answered by a colleague using some principles of physics.

I was asked why, if throwing an object up while shooting in a car 100 km / h, this falls into my hand like I was firm and such does not fall back towards the rear seats.

The answer is simple. Take this time to consider the principle of inertia principle of Galileo or a Newton, who tells us that an observer rispettto ever, a body retains its rectilinear motion or at rest unless it is subject to forces.

imagine going 100 km / h on the highway at constant speed. We only consider the car and its occupants, neglecting the friction with the road, air, etc.. Going at a constant speed the car is not neither accelerated nor slowed.

The passengers are sitting in seats that are in solidarity with the car, traveling at the same speed and are not subject to any acceleration, then the principle of Galileo as he says, are not subject to forces (except that of gravity, but does not consider the horizontal motion) not being subject to such forces, and each passenger in the car are in a state equivalent to that of peace, that is, as if the car was completely stopped. This means

that if they are sitting on the front passenger seat and throwing up a coin, it will not be subject to any force except that of gravity. The coin will not move horizontally, but vertically, back in my hand.

However, if accelerated, things change and the money I will end on or in the passenger seat back. Why?

Why in this case the inertia comes into play, namely the properties of matter to maintain its state of motion or rest state.
Since there is a throttle, the car does not maintain its state of motion, but is subject to a force that moves it forward. Inertia, however, my body tends to remain in his state of relative rest with respect to the seat, which instead will move forward with the whole car. Result: they are crushed in the seat until I finish accelerate. Apparently am I going back to the seat, the seat is actually going forward and pressed against my back.

Similarly, when run in high speeds while the currency, its inertia will tend to have it remain in its state of rest while but my body will move forward driven by the seat. The money apparently is moving backward, then toward me or toward the back seat.
In reality, however, I have to go on with the seat to money and everything else. The inertia is a measure of delay with which the currency reacts to acceleration. If

brake the opposite happens, ie the machine is applied against an acceleration (deceleration) that tends to go back. The currency will continue to inertia, however, its motion and if I tried to throw up at this time would end on the mat or on the windshield.
It really is not the money that moves forward, but the windshield is moved back, because of the deceleration. The inertia of the coin, in this case will in practice the delay in reacting to this deceleration.

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week of scientific

Taken from the site "Molecular Lab

From March 3 to 9 takes place throughout Italy, The eighteenth edition of Scientific Culture Week.
An Initiative of the Ministry of Education (Ministry of University and Research) that aims to promote the dissemination of technical-scientifica.Scopo of Scientific and Technological Culture Week is to mobilize all the skills and energies of the country to promote more widespread distribution of a solid and critical technical and scientific culture. In particular, the Week promotes the "opening of effective channels of communication and exchange between the" universe of civil society (which sees the world in the first row of the school), on one hand, and "articulated set of the research system (universities, public and private research institutions, museums, corporations, associations, etc..), from "altro.Si is a task of crucial importance, not only because it contributes to the cultural growth of the country, but also because it is a precondition for the full exercise of democratic rights of citizens, who are called to make more and more choices (environment, genetics, energy, etc.). that to be truly independent and accountable, require a solid scientific knowledge of basic act.The weeks is also the instrument for testing and promoting the "ambitious project developed and supported by the MIUR to create a national system of permanent institutions (museums, shopping and city of science and technology, universities, academies, etc..) engaged in the task of ensuring citizens with a "technical and scientific information updated and certified, while providing the technical and scientific heritage which is rich in our Paese.Questo is a key point that can go right to the credit of the Week. At universities, industries, institutions public and private, etc.. There are specialized laboratories and museums that can show our young people the "scientific research activities in our country, yesterday and today. Young people will be able to directly observe the tools, experience and research and meet researchers.
result can be a valuable experience for young people, even decisive in view of future choices, a guidance to a specific address, study and lavoro.La Scientific and Technological Culture Week aims in a particular way to facilitate the participation of schoolchildren to the planned initiatives. In fact, it is mainly young people who can be entrusted with the hopes of a radical renewal of a fruitful and enriching the cultural basis of our country. For this reason, the Weeks are promoted in the spring, when there is maximum mobility scuola.L "national initiative of Weeks (who has offered the model to the European Scientific Culture Week, sponsored by the EEC in 1993 on the initiative of European Commissioner for Research, Antonio Ruberti) uses the decisive contribution of numerous public and private construction put in many hundreds of events annually offered to the public and of "encouragement, support and coordination at local and regional level, guaranteed by the regions, municipalities and the provincial and the supervisors.
More in the Events section of the Site What it offers: - Conferences and seminars on topics of history of science and technology, current scientific thinking on the fundamentals of science and ethical-political implications of scientific and technological initiatives Guidance on the role of the media for the dissemination of technical-scientific methods to ensure the update permanent teachers and to increase and qualify the level of technical and scientific culture in schools; thoughts and experiments on the role and ever-expanding fields of application of new technologies (for the protection of cultural heritage, for education and training for the health and recovery of "disability, etc..) events designed to explore the theme of the relationship between diffusion of technical-scientific and increase employment opportunities for young people .- Shows, movies, conferences, teleconferences , computer forum, etc.., on issues of scientific and technical disclosure, even in historical perspective .- Presentation of new projects, exhibitions, services (special openings, tours tours, etc.). or educational packets at science museums (technical, scientific, natural, medical and ethno-anthropological, historical plant, etc..), botanical gardens and parks, schools and institutions of all levels who possess scientific laboratories of "historical and educational .-" open laboratories "at the research universities, research organizations and public and private companies engaged in" innovation .- Refresher courses for teachers on topics of frontier research science and technology .- tourism program for scientific and technical schools of all levels, initiatives and events in the field of culture and "environmental education .- Shows, theater, music and multimedia in the field of visual arts and "minor" in "field of arts-science relations, history, science and society and science, on" images of science and technology "(under" art, literature, history, etc. .) and, in general, on issues .- E interdisciplinary event or any other form of communication suggested by proponents of creativity, as long as effective as a function of "objective of spreading a serious technical-scientific basis.

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the Curlew's Nest and the ear of Lycaon

In their sketch comedy, Aldo Giovanni & Giacomo often cite animals, paired with unlikely situations. There is a famous climb in the mountains, where the poor Aldo, while John encounters protrusions and recesses of each animal kind, wonders whether to Piero Angela desperate to climb to the summit unscathed.

We list the various animals mentioned in this sketch, for the curiosity of those who wondered what the wild dog or the curlew.

socket Gnu .

The Gnu is an African cattle herd famous for Migration who performs throughout the year to find fresh grass on which it feeds. During these shifts the herd to cross the river Serengeti, where many specimens are often killed by crocodiles or killed in the crush for the rush to pass this dangerous step. After the great migration come to light several small, outweigh the losses suffered.

The vertebra Skunk

The Skunk (not Molfetta) is nothing than the common skunk.

Carnivora, belonging to the order of mustelids, including for example, the weasel, marten and mink, is famous for the unpleasant odor emanating from a perianal gland. This gland is found in many mammals and serves to mark the territory, but the skunk has the function to withdrew predators.

's ear Lycaon

The African wild dog is a canine that recalls certain characteristics in hyenas . He has big ears, long legs and the end of tail, to be recognized during the chase by the other comrades. It 's a very social animal and cooperative, which lives in herds by dividing tasks and resources in a balanced manner.

The African wild dogs feeding on Wildebeest and other African animals and do not have a permanent hunting territory.

Curlew's Nest

The Curlew is a European bird marsh, which feeds on small worms and crabs with long legs walking in the mud. This wading bird with long beak not nest in Italy, although in winter specimens can be found parked in estuaries.

There are no particular differences between male and female, if not slightly different dimension. The curlew sings both in the breeding season in winter, producing a sound similar to its name. It nests in hollows that fill with leaves, to accommodate the eggs.

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was born March 3, 1847 Alexander Bell invented

Who today opened the Google page, would be a small drawing of a man talking on the phone. He is

Alexander Bell, the man who until recently was officially regarded as the inventor of the telephone, at least outside of Italy (and many still consider it).

early because the good Meucci, who in 1871 filed a "teletrofono" could pay for a patent only temporary, renewed until 1873. Its scarce finances prevented him from the paternity of the invention of acquisition and Bell appeared in 1876 (and patented) its version of the phone, officially becoming the creator.

Meucci tried to sue him, but without success, again because of its meager financial resources.

The debate about who was the real author of the telephone continued for over a century, but in 2002 the U.S. Congress officially ended the story by attributing the authorship to Meucci.

Bell should be remembered, however, because both came independently to the phone (which also invented a system trying to communicate with the deaf wife) and for the numerous inventions of which is the architect.

Bell invented the metal detector, he worked on optical fiber precursor, filed several patents on the telegraph, airplanes and high-speed, created the conditions for storing data on magnetic media, built the forerunner of the air conditioner, made experiments on composting of waste, suggested the use of solar panels to heat their homes. In 1888 he was one of the founders of the famous National Geographic Society, which was the second president.

In his honor, finally, remember the Bel (B), the unit was invented by Bell Laboratories to measure the intensity of sound, which is derived from the familiar decibel (dB).