On the 20th of September 2013, I went to collect archived boxes my deceased father had left behind at his former work storage of the aeronautic military zone, near Paris. I found a palette, where 25 archive boxes were carefully piled up. Twenty four of those boxes are actually my grandfather’s archive. They were lying there since his passing away in 1991. Twenty four boxes waiting for twenty two years… I couldn’t help having a quick glance at those boxes and each of them was more surprising than the other: maps, notes, pictures and drawings, as well as mysterious random scientific essays and patents. They are a compact content of the lifetime research my grandfather had led.