Contrails or chemtrails?
In the last years I watched the proliferation of pictures showing aircraft…
International Fighter 2008
On Nov. 5 and 6, the Istituto di Scienze Militari Aeronautiche (ISMA),…
Sonic booms and condensation clouds (explained)
Here's a primer on condensation clouds, sonic booms and Prandtl-Glauert Singularity. Pictures…
Axalp 2006 report
Nell’epoca di Google Earth e delle foto satellitari disponibili gratuitamente su Internet,…