Artur Fischer was an inventor from germany, not only did he invent the dübel
but also the synchronized flash and founded a company that produced children toys called "Fischertechnik". With Fischertechnik children/young adults and of course adults are able to build their own robots etc.
and it seems even close to his death he fixed a problem he was told about in 1946:
wall anchor
Artur Fischer, a German inventor who registered more than 1,100 patents, including the first synchronized camera flash and an anchor that millions of do-it-yourselfers use to secure screws into walls, died on Jan. 27 at his home in Waldachtal, in southwestern Germany. He was 96.
Mr. Fischer’s other inventions included Fischertechnik model-making kits, cup holders with retractable lids, ventilation nozzles and edible play-modeling material made from potato starch.
Many of Mr. Fischer’s humble inventions led to spinoffs. He applied the principle of his wall plug, for example, to create a series of surgical plugs to hold broken bones together.
and it seems even close to his death he fixed a problem he was told about in 1946:
More about him, his inventions and life hereMr. Fischer’s most recent inventions is a gadget that makes it possible to hold and cut the top off an egg of any size. He got started on the problem when a hotel owner complained to him that his guests, on opening their boiled eggs for breakfast, always made a mess — the year was 1946.
I hope it is okay to create this thread. he created a lot of stuff millions of people use everyday. Maybe it is nice to know for some here to know who invented it.