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.
Friedrich Zollinger Friedrich Zollinger, also known as "Fritz Zollinger" (March 31, 1880 – April 19, 1945) was a German architect, engineer, buildings official and town planner.