The man that built the FNRS-1 balloon died in what year?
FNRS-1 The FNRS-1 was a balloon, built by Auguste Piccard, that set a world altitude record. It was named after the Belgian Fonds National de la Recherche Scientifique, which funded the balloon.
Max Valier Max Valier (February 9, 1895 – May 17, 1930) was an Austrian rocketry pioneer. He helped found the German "Verein für Raumschiffahrt" (VfR - "Spaceflight Society") that would bring together many of the minds that would later make spaceflight a reality in the 20th century.