Dinosaurs could not hear humans

If a Tyrannosaurus rex lived and crossed on our way, not hear our cries. This was confirmed by a study conducted by Otto Gteich and his team at the University of Regensburg in Germany.

To calculate the limits of hearing 7 rex, analyzed the ear of birds descended from dinosaurs. Scientists found that the frequency range of hearing in birds is inversely proportional to its body mass and length of their basilar papilla, a structure key to the inner ear.
Apparently, the species with small papillae Corlar better hear high frequencies. Because fossils do not preserve this part of the ear, experts measured through cloquear, that it is preserved in Archaeoptetyx-an early-bird, alosaurios and braquiosaurios.

In these fossils is that through third longer than the birds. In conclusion, concluded that the Archaeoptetyx had a hearing similar to modern birds.

For its part, a alosaurio of 1.4 tons oiria frequencies between 1.1 and 3 kHz, and a braquiosaurio of between 700 hertz and 2.4 kHz. The range of tyrannosaurus would be between the two. As the cry of a human exceeds 3 kHz, the animal could spend over without hearing our complaints.

The enigmatic poliwater: great discovery

One of the most controversial cases occurred in the late 1960, when a group of scientists at the Institute of Chemical Physics in Moscow announced the discovery of a new form of water.
There was a theoretical speculation: SONET displaying photographs of their trials and provided small samples in fine quartz tubes.

Boris V. Deryagin, one of the greatest experts in chemical surface, this discovery led to the West, who had made the physicist Nikolai Fedyakin.
His talk in the classic "Discussions of the Faraday Society", held in 1966, scientists capitalists made aware of their wonderful properties: Hervé at 150 ° C, frozen at 40 ° C and issue a viscosity comparable to syrup.

What happened was peculiar. Imagine that sealed a little water within a hair of quartz. The liquid reaches a certain height, but soon a second column appears at the top of the tube that seems to be growing at the expense of which is located underneath.
It is not strange to assume that part evaporates and condenses above, but the pressure and temperature inside the tube must be the same anywhere, so there is no reason for the water to behave that way.

The only way to explain it is assumed that the liquid from the upper part different from that goal in the capillary. Does this mean that a liquid may take another structure? After all, this happens with ice ... That was the reasoning of the Russians.

The Mammoth one could return to the life - great discovery

A group of Russian scientists has obtained the most precise images obtained until the moment of the interior of a prehistoric animal thanks to the scanner carried out a breeding last year of mammoth of some found intact four months in Russian Ártico and that you have received the name of Liuba, that of the hunter's woman that found to the baby-mammoth one.

The body of the animal was returned to Russia in February passed after being studied in Japan, where they took the images.

"We could see for the first time how the interior organs are located in a mammoth one. This is very important from a scientific" point of view, Alexei has pointed out Tikhonov, subdirector of the Institute of the Russian Academy of Science who have directed the project. "Your interior organs were well preserved, the heart still conserved the ventricles and the atriums, the liver was under good conditions and the veins" could still be observed, you have explained.

The discovery of Liuba is very important from the scientific point of view because you are about the breeding of mammoth better preserved, thanks to the ice, of all the found up to now in the entire world.

"In my opinion, you are about a very important" discovery, Natalia declared Fiódorova subdirectora of the Museum of Natural History of the city of Salejar, to where the paleontological discovery arrived.

Of 1,7 meters of high, 3 meters long and near 400 kilograms of weight, the mammoth one congealed you have intact an eye and part of the trumpet, the scientist told to the agency Itar-Tass.

You explained that the remains of the prehistoric animal were found at the beginning of month by a shepherd of reindeers in a bend of the river Yuribel, near your outlet in the sea of Kara.

With the help of special teams, Russian paleontologists dug the remains of mammoth of the congealed floor, where bones and eyeteeth of mature mamuts were also found.

Fiódorova indicated that the discovered piece is the second breeding of mammoth discovered beside Yuribel, river that remain congealed of October to June.

You remembered that in 1998 the remains of a mammoth one of four months were discovered that currently is exposed in the Museum of Zoological History of San Petersburgo with the name of mammoth "Masha."

According to the good known theories, the mamuts appeared in África you make 3 or 4 million years, they migrated toward Europe and Asia makes two million years, until arriving in America of the North going by the strait of Bering, 500.000 years ago.

For the science it continues being an incognito one the cause of your extinction that began about 11.000 years ago, when the population of these animals began to descend approximately about 3.600 years ago until the total extermination of the last Siberian copies.

Scientists locate the "G Point"

A new mystery is about to disappear, the enigmatic and controversial trigger of the sexual feminine satisfaction, the G point. And you are that, according to a team of Italian investigators, it can be localized using the ultrasound.

So far, the medicine had not been able to locate this mysterious point, but these scientists assure in the New magazine Scientist that found an area of thicker tissue among the women that say to have orgasms.

The ultrasound was used to often measure the size and the form of the tissue that it are beyond the front wall of the vagina, considered the locus in quo is the point G. In nine of the women that affirmed reached book credit the vaginal orgasm, the tissues between the vagina and the urethra were on the average thicker than in the 11 remaining women.

The physician Jannini, boss of the investigation assured that: "For the first time, you are possible to determine with a bare, quick and cheap method if a woman has or not a G point."

Although far from settling the subject, the physician Tim Spector, of the Sacred Hospital Tomás from London, says that the thickest tissue could be, in fact, you leave of the clitoris, another extremely sensitive area.

Therefore, they will still be carried out but you prove to determine who are in the certain thing, but far from worrying about the existence of the mysterious point, the best thing, like you tell the sexologist Petra Boynton, you are to relax you and not to be centered neither to be obsessed with that concrete area, because they are ignored all the other ones.

They obtain a vaccine model against the been administered for via respiratory

An international consortium has opened the way in the development of a cautionary vaccine against the virus from the AIDS when obtaining a model that could be administered by means of aerosols and for via respiratory.

The work whose conclusions are published in the magazine Proceedings of National the Academy of Sciences (PNAS), reveals that in the new test, sampled in ugly and in human in clinical initial phase, you have given positive results. This "vaccine" uses modified antigens of HIV, a substance that give place to the formation of antibodies. These antigens are used with the purpose of activating in the organism a cellular answer and humoral against the virus.

The management of the vaccine for via respiratory it would facilitate your use in programas in developing countries and you would suppose a saving of the sanitary necessary material.

For this reason, the scientists trust to continue with new clinical trials with the purpose of confirming a high inmunogenicidad again in monkeys and human in front of SIV (Virus of the immunodeficiency of the simians) and HIV.

Believe viral defence in lab

A team of Canadian scientists of the University McGill has discovered in a lab the way to potentialize the natural defense system of an organism against the viruses, making potentially to the immune cells to the flu and other attacks humans.

In spite of the good apparent notice, the scientists assure that for the moment this process cannot be carried out in human cells, but in spite of this, they assure that the technique could help to the development of antiviral new therapies.

The key of the process is the stimulation of the protein interferon that are in the battle front that you have each cell against the virus attack. To boost your production, the investigators were able to delete two key genes in mice that allowed a bigger interferon production, that that in turn blocked the virus playback, especially those responsible for the flu.

This fed the expectations about the possibility of combatting a variety of strains responsible for the lives of millions of people, the famous pandemics, as the one that currently threatens us, the famous flu to prepare.

Now, the following step is to achieve it with human, maybe with another technique but with the same results. Also, abnormalities or side effects were not detected so in the lab mice the scientists they are already hands to the work to design a drug that can behave in the same way in the gene human.

Believe metallic sponges designed to absorb CO2

More and more advances go routed to the preservation of the environment and the deletion of the compound numbers gases of effect hothouse. You are the case of the following development, in which a team of scientific of USA has designed a new material able to capture the causing main gas of the climatic change, the dioxide of carbon (CO2).

You are about an organic metal, in form of micro-sponges that capture the gas to a temperature and a very high pressure. The idea is to use it in the future to capture the dioxide of carbon that you/they emit the power stations of charcoal or the vehicles, and this way to avoid the emission from the polluting gas to the atmosphere.

Of the several prototypes of sponges created by the scientists, the most efficient in them is able to absorb a quantity of CO2 83 times superior to your own volume.

To achieve these shrinkholes "atrapagases", baptized as ZIFs, they have united diverse metal types like the cobalt or the zinc with organic molecules. The main inducement is that once saturated these metallic sponges, they can "be downloaded" and they are already clever to use them again.

The developers assure that these new materials can help in many environments industrial and quotidian amitigar the efetos of this and other gases. This, clearing is, if finally was viable your commercialization.

Solar panels that work the 24 hours

The dream of environmentalist and users that search alternatives to cheapen costs and to guarantee electricity, still during the cuts, it can be a reality. And everything thanks to the development of a group of investigators from National Idaho Laboratory, in USA.

Since you began to use for the electricity generation, the solar energy has been an alternative font whose use has gone growing in an exponential way. And here we have already seen different alternatives, as the impelled one for Google.

The problem is that the production of solar facilities is still something expensive, what end up reducing your market to a niche for some few ones. For if you were little, your strength is quite reduced, what involve that they are not too many the devices that can be fed this way: in consequence the depreciation of this type of investments is more dilatory.

But that can be to change thanks to Steven's work Novack, of National Idaho Labortory that affirm book credit desarollado a new type of solar panels. Thanks to the nanotechnology, the surface of these panels is printed with minuscule nano antennas that can capture the infrared radiation that are plentiful during the day but that, still during the night, you are present.

This would allow to obtain solar energy the 24 hours, something that will surely contribute to make much more income-producing the facilities of this type. And not alone that, but rather the grade of energy absorption achieved this way climbs until 80%, against 40% that are the habitual one with the solar fabricated panels with silicon. If that wasn't enough, the method invented by Novack will allow the production of solar panels that you/they can bend, reverting them extremely practical for your transportation and easy installation.

The difficult only aspect up to now is the one of being able to transform the energy obtained in electricity, since the nano antennas has each a very little strength and your value is given on the whole by your work. Certainly that in this aspect they are working the scientists. When they have solved it finally we will be able to have solar really actual and economic panels.

Sexual Curiosities

30% of the Spanish youths points out that he/she only knows about sex what reads in the books and magazines. Other 30% procures its friends' data and 11%, of its parents.

Among a 8 and 10% of the queries that are carried out to Internet from Europe they take constructive the word sex. Such and like it points out a studio of the University of Pittsburg, only six years ago, 25% of the searches had some relationship with the sex; today, on the other hand, the favorite topics are the electronic commerce and those related with the services.
The women suffer more for love. The Italian therapist Walter Riso, attributes it "to the feminine biggest sensibility, but also to that the feminist revolution didn't take I get an affective revolution, the understanding on the part of the woman that it can be alone affectively and that he/she doesn't have to love to be carried out."

When the music speaks of loving relationships, the idea that prevails is that the woman gives and the man receives. But that is not everything: 83% of the feminine singers insists in that idea, in front of "only" 55% of the men.

90% of the German has faked an orgasm at some time, most of them to please its couple.

The labor schedule he/she reduces the possibilities to exit and to find the perfect man. So much that one of each three western adults from among 25 and 49 years he/she doesn't have couple.


Among the victims of the labor pursuit in Spain more women than men are counted. According to the report Cisneros on this topic, directed by Iñaki Piñuel, the pursuit originates before the worker's negative to waive in the face of the blackmail or the servility, or for claim of its labor rights, for envy or, simply, for sexism.

The women have more memory than the men, as it concludes a studio of the University of Florida. The report points out, also that they are specially skilled when remembering the names of people.

Of purchases. The Spaniards spend 68% of their budget in clothes, shoes and linen; 36,8% in leisure and 22,5% in cosmetics. They only dedicate to the saving 2,5% of their money.
. for the Network. 63% of those who buy in the network is women whose half age is of 45 years.

According to a work that Medical has published Journal, the risk of mortality can decrease in 50% among those males that enjoy a sexual active life.

In the Welsh city of Caerphily, 918 males from among 45 and 59 years they showed up voluntary to this pioneer experiences. All they were submitted to a medical complete checkup and an interview in the one that you/they were asked with all frequency maintained sexual relationships. The answer to these questions varied from never until every day.

Next, during ten years, the investigators analyzed the health and the cases of mortality in this group of men. When it concluded this period of investigation, the data gathered by these scientists were truly surprising.

The more discharge was the <> of the entrants, more probabilities had of being healthy and alive.

The oldest manuals about sexuality were written about 500 years ago in China.

The first sex-shop of the history settled in the German city of Flensburg in 1962. Thirty years later, the signature has 650 employees and a volume of businesses of 8.000 million pesetas currently a year.

The condoms king size (supertalla) are experiencing a boom of sales in many countries. One of each four men complains that he finds too tight condoms uncomfortable during the sexual activity.

In a survey carried out in the Institute Kinsey in 1990, in which a question was included with respect to the size of the penis, the males believed that the mean size was from "20 to 30 cm" while the women deemed that "less than 10." The correct fact is from 12 to 18 cm.

At least three women - an American, a Briton and an Australian - they maintain that they have had sexual relationships with infants of the external space.

The World Organization of the Health (OMS) called the carefulness in 1973 on the formation ullage it has more than enough people's sexuality enabled to run the educational programas. Their feature consisted on facilitating information, to offer therapies, to form educational and to advise where it was necessary. He/she should have their appearance in the services of maternal-infantile care, centers of family planning, of mental health and community health. Of the multitude of necessities and social lawsuits he/she is derived the necessary specialization of the sexólogo like: sexual consultant, expert in sexual pedagogy, expert in sexual therapy and investigator. As in our country there are not ruled studios of sexología, the societies sexológicas have gone imparting diverse formation paths.

"From where does the verb follar come?"
He/she comes from the word Latin follicare (to blow), come in turn of follis (bellows). Follicare has given to our tongue other words like folgar, to not work and it. The verb follar, in its origin, meant to play or to relax; later he/she passed to refer to the sexual act. To refer to the same thing we also use to fornicate, word that comes from fornices, the bridges under those that the Roman prostitutes used to locate awaiting clients.