40 years ago, when the mail was in its infancy and computers occupied whole big rooms, a group of MIT researchers predicted current phenomena as the rise in oil prices, the loss of biodiversity’ and the emergence of a global ecological mentality.
Il rapporto ‘The Limits of Growth’ had predicted a collapse of the economy because of the incredible exploitation of resources around the 2030.
At the time the book was a huge success, with more than 12 million copies in more’ of 30 countries, but he was welcomed by the scientific world with very scetticismo.All 'time the work was targeted by criticism, but today all the research say that the authors were right. The main authors, Donella e Dennis Meadows e Jorgen Randers, have published two reviews of the relationship, in 1993 and 2006, who confirmed the predictions.
Even a work of Australian physicist Graham Turner has shown in 2010 As the trends of the variables examined in 1972 have been fully complied with until at least 2000. The OECD said that the 2050 we live in a world where resources are constantly being plundered, and that there’ “an urgent need to think in new ways”.
Our solar system has many more surprises of Serbia.
Take Venus: the '60s knows that almost no magnetic field, which means, for example, no aurora. But yes, in reality are possible. They tell us the latest data from the spacecraft Venus Express European Space Agency (That), reported in the pages of the team Science.Analizzati Tielong Zhang, astrophysicist at the University of Science and Technology of China, and Principal Investigator of the Venus Express Magnetometer (MAG), data to say that the precision: the behavior of the ionized gas and the weak magnetic field of Venus is characteristic of so-called magnetic reconnection.
Now, This is precisely the phenomenon of magnetic reconnection at the base of the polar aurora, and here's why: the solar wind (ie the flow of charged particles from the Sun) moves the magnetic field of planets, compressing it on the one hand and pulling it as a sort of elastic on the other. When the rubber band is released, and therefore the magnetic field back to its natural state, is liberated a large amount of energy. This energy accelerates the electrons towards the upper atmosphere, where they form the spectacular play of luce.Fenomeni reconnection have been observed in the magnetospheres of those planets are characterized by a strong magnetic field: Mercury, Jupiter, Saturn, besides our Earth.
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