CUN Messina - Prof. Alexander Zaitsev intervistato dagli studenti della 5^A - ITN Caio Duilio (ME)

Il Prof. Alexander L. Zaitsev (astrofisico - Accademia Russa delle Scienze) intervistato dagli studenti della 5^A dell'Istituto Tecnico Nautico "Caio Duilio" di Messina, in occasione della conferenza "Messaging to Extra-Terrestrial Intelligence" del 28 maggio 2011, organizzata dalla Sezione di Messina del Centro Ufologico Nazionale presso la prestigiosa sede del "Salone degli Specchi" della Provincia Regionale di Messina.
Tra i relatori della conferenza anche il Dott. Pietro Cassaro (ricercatore INAF, Sezione di Noto), Antonio Morreale e Rosaria Landro del CUN Messina.
Gli argomenti trattati sono stati il progetto SETI (Search for Extra -Terrestrial Intelligence) e il progetto METI (Messaging to Extra -Terrestrial Intelligence) che rispettivamente hanno come obiettivo la ricerca di vita intelligente extraterrestre e la trasmissione di segnali da terra per la ricezione da parte di eventuali civiltà extraterrestri. Un plauso a tutti i Dirigenti scolastici messinesi che hanno aderito a questa iniziativa, intravedendo in essa un momento di crescita per le future generazioni.

Trascrizione delle interviste degli studenti al Prof. Alexander Zaitsev:
Stefano Stracuzzi: - The conquest of space has been a huge step ahead for mankind. According to you, what level would the communication technologies have reached so far, if the use of satellites hadn't been introduced?
Prof. Zaitsev: - As I know, all modern communication is made via satellites (geo-stationary orbiting ones). Without these satellites it's impossible to even imagine progress. Do you know who first suggested using geo-stationary orbiting satellites for communications? He was Arthur Clarke...
Stefano Stracuzzi: - Yes, Clarke, I mentioned him on my essay..
Prof. Zaitsev: - Yes, he published an article, the other people laughed, saying: "it's impossible because the distance is huge!" They knew the level of radio science of their time, and estimated the probability of detecting the signal would be very negligible. But he was a clever man!
He looked ahead!
Stefano Stracuzzi: - Yes, exactly!
Stefano Stracuzzi: - How dangerous can asteroids be for satellites?
Prof. Zaitsev: - I don't think that asteroids can be dangerous for satellites. A satellite is very small; there's a more important question about this, which is whether they can be a danger or not for all of us. If you enter the American website "Jet-Propulsion Laboratory of NASA", you can find the table of all satellites. If you put a question: "Are there any dangerous asteroids for the satellite constellation?" They'd say: "At present we do not know any cases of crash between a satellite and an asteroid!" Because the probability of crash, now, for all known asteroids is very negligible.
Stefano Stracuzzi: - It is widely known that you have focused on the study of interstellar radio-messaging. Could you briefly explain how this kind of research is made?
Prof. Zaitsev: - The SETI, Search for Extra-Terrestrial Intelligence is run by people who search for radio signals from space and believe that somebody sent them. If they have sent signals, why don't we re-send them?
The few times we detect something new, we transmit it; it's the explanation of the "Fermi paradox" (the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for such civilizations). All listening and nobody transmitting! So, several people in the world make search for signals; I transmit them with METI (Messaging to Extra-Terrestrial Intelligence). There's not parity, because one-hundred times more often we make searching, than transmitting! But maybe for other civilizations there's a similar matter: searching and monitoring the whole time, and time to time select the most interesting signals, transmitting them back.
Stefano Stracuzzi: - Thank you!

Francesco Calabrò: - In your opinion why has the man always tried to understand the phenomenal of the Universe?
Prof. Zaitsev: - I don' know, it's in the property of our mind, the man is different from the animal, it's a very abstract material, and it's very fine.
Francesco Calabrò: - How important do you think is for young people know the misteries of astronomy?
Prof. Zaitsev: - French astronomer Henri Poincaré in his prominent book "The Value of Science" (1905), in chapter VI "Astronomy" wrote:
...if, for example, we live on the planet which has opaque atmosphere, as Venus, and can not observe the stars, we never get mind, because namely from the sky arrived to primitive people the concept of objective laws.
You see, the primitive people lived in the totally stochastic world, but by observing the sky he can understand that world has physical laws, that is primitive people step by step turn into Homo sapiens. So, if we (young people) know and reflect upon the misteries of astronomy we extend our reasonableness...
Francesco Calabrò: - Thanks! Cпасибо!

Category:

Science & Technology

Tags:

• CUN Messina
• CUN Sicilia
• Alexander Zaitsev
• Cassaro
• Calabrò
• Morreale
• Landro
• Stracuzzi
• SETI
• METI
• ITASEL
• INAF
• Radioastronomia
• Alieni
• Extraterrestri
• OVNI
• Radarastronomia
• Ufo
• Ufologia
• Search Life
• CUN Italia
• ITN Caio Duilio
• Provincia Regionale Messina