Hannes Keller
Hannes Keller (September 20, 1934 – December 1, 2022(2022-12-01) (aged 88)) was a Swiss physicist, mathematician, deep diving pioneer, and entrepreneur.
Hannes Keller (September 20, 1934 – December 1, 2022(2022-12-01) (aged 88)) was a Swiss physicist, mathematician, deep diving pioneer, and entrepreneur.