Good Spots In Boobs And Face

If it were not for wine there would not be kissing

seems strange, yet it is a historical fact.

Let's take a step back in time.

Nell ' ancient Rome, and more specifically in the republican age, the woman did not matter much in public affairs. You can not say the same about his home. There was an extraordinary power. The Roman matron in her home had power over everything or almost everything. In fact, his only limitation, in turn between their rooms and manage your notes, it was just due to the ban on access to the cellars and then, alas, the wine! And yes, before you reach the imperial age if a woman was found to be tasty drink that "grape juice", this bitterly serious crime would be punished by her husband, even with the ' be out of the house.

But how could control his own wife, and what means were available at that time to see if the woman had been drinking or not? Well, certainly there was no alcohol test. The only scientific means available was the nose. Already, women had to undergo the checks "sniffing ", also Part of her husband's relatives in case they find out, to find out if they should dare to delight. But what happens when approaching such a nose a mouth? It happens that ends up in the mouth or nose, or lips end up against her lips.

arises is how the kiss!

Now, we do not know if this type of monitoring also lead to consequences (quarrels, separations), but was born as the kiss not find news or in books or in writing wall. This tells us the general and the Roman scrittre Terentius Varro in his book on wines and farm life.

Anna Picchi

Chelsea Charms August 2010

A telescope as big as the Earth notes in real time the violent core of a galaxy

Studying the "heart" of a turbulent galaxy and enigmatic, with

much detail as possible, using radio telescopes of three continents, all at the same time pointing to the same celestial body. A great scientific and technological challenge which ended with a resounding success.

Driving this ambitious project of astronomical observations on a global scale, real-time Marcello was Giroletti, INAF-IRA in Bologna.

The objective of this observing campaign, which lasted from March July 2009, was an active galactic nucleus known as PMN J0948 +0022, a celestial object from the properties of all details. It is the first of a new class of active galactic nuclei issuers of high-energy gamma rays discovered in 2009 by Luigi Foschini

INAF Osservatorio Astronomico di Brera and other means of Fermi satellite. The news has created a very intriguing real "hunt" involving astronomers and telescopes around the world, tracking J0948 +0022 in different bands of radiation, from gamma rays to radio waves and X up, needed to get more scientific information on this object and image precision. And in the "window" radio is certainly one can achieve a result: an accurate map of the central region of PMN J0948 +0022 reconstructed from data collected by the network VLBI (Very Long Baseline Interferometry), which coordinates the activities of the largest radio telescopes on Earth and in which scattered is engaged, among others, the 32-meter antenna at INAF-IRA Medicine (Bo).

The level of detail achieved is impressive: only a few tens of micro-arc seconds (millionths of seconds of arc). The same keenness of vision capable of detecting a soccer ball on the surface of the Moon. "With this resolution we have sensational to reveal a super-compact and extremely bright, "says Giroletti, first author of the article published online today on Astronomy & Astrophysics Letters describing the results of this work.

"The physical mechanism that best explains these data requires the presence of a jet of matter moving at speeds close to quelledella light, which can only be achieved by extracting energy from unenorme black hole. In fact, in our image is possibiledistinguere the basis for this project. "

Observations involving instruments located in Europe and Australia, via the Far East (China and Japan), a12500 km distant from each other up, as almost the diameter of Earth. And questadistanza allowed to obtain such precise measurements, using laproprietà is increasingly becoming a resolution increasing separazionetra antennas.

And contrary to what happened so far, arrived risultatisono virtually live, using a data link infibra optical high-speed real-time allowed riversarei data generated by individual radio telescopes spread across three continents. Unavalanga of information that reached a maximum value of more than 4.2 billion bits per second, the same flow lines obtained from 600 ADSLdomestiche the maximum available bandwidth. To statoutilizzato prosecute is a supercomputer located in Holland, at the headquarters of the JIVE (Joint Institute for VLBI in Europe).

This procedure, which is now quasiprassi in Europe, had never been used before on scalaplanetaria. A pioneering experiment really, but this was funzionatoalla perfection. "The contribution of these observations dalradiotelescopio INAF / IRA of Medicine was very important. And the Italian futuroper radio astronomy is even more promising and we look forward to the return of the operational antenna NOTOC the forthcoming entry into service of the Sardinia Radio Telescope, which will enhance duestrutture also VLBI Network "sottolineaGiroletti.

Source: INAF

Marco Galliani

Office of Public Relations and Press

INAF - National Institute of Astrophysics

Viale del Parco Mellini, 84

00136 Rome

galliani@inaf.it

Used Mercruiser Outdriveseurope

The clock of life science

Have you ever wondered how scientists an archaeological dating?

First of all start by saying that the purpose of archaeological research is to establish scientifically the history and framework dating of the finds from the excavation.

Think what a mess it would be if we could not dating an object just found out: it would be devoid of interest.

What, then, means finding a date? It means give it a calendar date (eg, Caravaggio painted the "Rest on the Flight into Egypt" in 1594).

It also means establishing a time frame in which an event has occurred (eg, the last phase of reconstruction of Pompeii took place between 62 AD - the date of the earthquake - and 79 AD - the date of the eruption) .

The main difficulties relate primarily to dating prehistoric remains, as for they do not have data from historical documents, literary and numismatic and these findings can be attributed approximate age, a "chronology."

natural clock

Scientific methods of dating are based on the fact that some substances and (bone, wood, textile fibers, seeds, charcoal) , widely distributed in nature, behave as natural watches, that are transformed chemically and physically in time, according to strict rules and constant speed, then these changes can be measured to determine absolute dates.

CARBON NOBEL

One such method is known as a method of carbon-14 (it also writes 14 C) , or radiocarbon, which was conceived and developed between 1945 and 1955 by the American chemist Willard Frank Libby , that this discovery won the Nobel Prize in 1960 .

Carbon 14 is a radioactive isotope carbon found in nature. All living organisms continually exchange carbon with the atmosphere through the processes of respiration (animals) and photosynthesis (plants).

After the death of these processes end and this exchange does not happen anymore because when the body dies ¹⁴ C begins to decrease is no longer new in the life processes and that this turns into nitrogen (N).

therefore a measure the level of carbon 14 in organic remains allows a calculation of the age of the remains.

the half-life

^{The decay of 14 C} happens on a regular basis. The time for half of the atoms of decay is called half-life (time in which his half turns into nitrogen).

Libby indicated as half-life 5568 years, given that modern research has changed in 5,730 years . Considered as the percentage of ¹⁴ C in the atmosphere were to remain constant over time and how this concentration were to move uniformly in living organisms by carbon dioxide. For example, plants in the process of photosynthesis they absorb carbon dioxide, they are consumed by herbivores, which in turn are eaten by carnivores. Only the death of the animal or plant ceases taking ¹⁴ C, and its concentration, the first constant begins to decrease due to radioactive decay.

Knowing the rate of decay of ¹⁴ C and measuring the amount remaining than remaining in the sample, one can determine the age of death, and therefore, less ¹⁴ C is present, the finding is more ancient. 

The major advantage is that this method can be adopted everywhere, provided organic material is available, but the rapid decay of carbon makes the application of this method is limited to the dating of objects between the ages of 50,000 and 100 years (although with modern techniques and sophisticated, it is sometimes possible to extend the ' time about 70,000 years), it remains too old would make no ¹⁴ C, since this is now completely fallen in nitrogen.

The dates obtained by this method are always accompanied by an estimate of uncertainty due to counting errors, the percolation of water (water-soaked sites may also dissolve the organic materials and deposit them, changing the isotopic composition ), and other situations that make inaccurate measurements.

Anna Picchi