Il colonnello Mario Giuliacci, meteorologo del Centro Epson Meteo, già direttore del Centro meteorologico dell'aeroporto di Milano Linate, He graduated in physics with a thesis on the influence of El Niño on the Italian climate. Contrails are a phenomenon known by at least 60 years, or since the jet went so far as to share 8000-10000 meters where temperatures well below zero (to less than 50/60 degrees) cause the immediate condensation of water vapor emitted as a combustion product in the form of a cloud just as visible wake. So the phenomenon has nothing mysterious or there are risks to our health.
The air humidity at that altitude is important for the persistence of contrails: if the humidity is very low, contrails evaporate almost instantly; humidity above 70% instead contrails persist for several minutes or hours, depending on the intensity of wind turbulence in the upper atmosphere. However, in the constant "chatter" in place on the contrails of at least 2 years, cause for wonder, surprise and even concern two aspects:
1 - The arrogance with which some groups insist a thesis, those chemtrails, no any scientific support, even supporting military conspiracies against the climate and environment, with their governments, which would be the only ones not to be aware of these conspiracies;
2 - The silence on the affair by the highest courts of national scientific and Facilities Military called in question. A silence probably due to the fact that you want, rightly, ignore theories without any scientific basis, but in this particular matter of course contributes to the idea of \u200b\u200bchemtrails.
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personal communication with permission to publish,
April 25, 2009.
personal communication with permission to publish,
April 25, 2009.
For about 7-8 months circulated persistently on the Internet with a document, you do not know by whom and which states that military aircraft be repaid to the sky for a long time tons of potentially toxic substances such as powders of barium, aluminum and polymers. All this - according to the anonymous source - in order to simulate experimental changes artificiale del clima. Le prove portate a corredo della notizia sono numerose foto di scie nuvolose (nel documento definite “scie chimiche” o chemtails) lasciate in cielo appunto dagli aerei.
Ebbene innanzitutto mi sorprende che nessun ente istituzionale sia intervenuto per mettere fine alla diffusione di tali notizie che, oltre a essere false (come tra poco dimostreremo) creano allarme, panico e disinformazione tra la gente. La notizia è comunque una bufala messa in circolazione probabilmente, a mio giudizio, da certi ambienti, al solo scopo di seminare discredito, lasciando intendere che i “soliti” americani” (dagli agli untori… yankee!!!) o i soliti “militari” experiments are dangerous to all, taking the dark even their own governments (as if the trails do not saw!) and disregarding the health of innocent citizens. In fact
the "chemtrails" in the document are displayed a normal phenomenon, there always existed since the jet aircraft and are produced in most cases by the immediate condensation of water released from the burning reactor in aircraft commercial jets and / or military, when they fly around 8-10 km. For this reason they are known as "contrails (contails). But here's how you generate contrails. At an altitude of 8-10 km, the air temperature is around 40-45 degrees below zero so the microscopic droplets of water released from the burner plane instantaneously condense into a myriad of tiny needles of ice, then made visible by a thin trail just cloudy. The ideal conditions for the occurrence of the phenomenon are those in which the surrounding atmosphere is already very wet, so if the trail hard to resist, and then evaporate into the sky for 1-2 hours. If those odds then there is also a strong wind, the wake tends to be scattered cloud side and then also taking to the large side. Under such weather conditions, along airways or some intersection of business today, particularly airways affollate è ovvio che, il frequente passaggio di aerei (uno, ogni 3-4 minuti), lascerà, nell’arco di 1-2 ore, una ragnatela di moltissime scie. Lo stesso effetto potrebbe essere prodotto dall’affollamento domenicale di aerei nei cieli prossimi agli aeroclub.
Ma vi è anche un’altra modalità per la genesi delle scie di condensazione. Se l’atmosfera è oltremodo umida, allora l’aria che viene a contatto con il bordo d’attacco dell’ala si spezza lateralmente in due parti le quali, scorrendo poi lungo la superficie curva della fusoliera, sono costrette ad accelerare. Ma tale accelerazione provoca una rapida espansione dell’aria in movimento attorno all’aereo, thereby cooling it. The rapid cooling in turn condense immediately the high humidity in the form of a dense cloud wake.
Finally, nothing prevents you think that many fans of free flight, to show off, they can make use of them harmless substances used by our three colors to draw arrows in the sky the colors of our flag.
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