Template:Are You Sure/April 7: Difference between revisions

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• ... that physicist '''[[Ernst Ruhmer (nonfiction)|Ernst Ruhmer]]''' (April 15, 1878—April 8, 1913) investigated practical applications making use of the light-sensitivity properties of selenium, which he employed in developing wireless telephony using line-of-sight optical transmission, sound-on-film audio recording, and television transmission over wires?
• ... that physicist '''[[Ernst Ruhmer (nonfiction)|Ernst Ruhmer]]''' investigated practical applications making use of the light-sensitivity properties of selenium, which he employed in developing wireless telephony using line-of-sight optical transmission, sound-on-film audio recording, and television transmission over wires?


• ... that computer scientist '''[[Donald Sarason (nonfiction)|Donald Sarason]]''' (January 26, 1933 – April 8, 2017) pioneered the abstract treatment of contractive containment and established a fruitful connection between the spaces Hb and the ranges of certain Toeplitz operators?
• ... that computer scientist '''[[Donald Sarason (nonfiction)|Donald Sarason]]''' pioneered the abstract treatment of contractive containment and established a fruitful connection between the spaces Hb and the ranges of certain Toeplitz operators?

Revision as of 03:19, 7 April 2020

• ... that physicist Ernst Ruhmer investigated practical applications making use of the light-sensitivity properties of selenium, which he employed in developing wireless telephony using line-of-sight optical transmission, sound-on-film audio recording, and television transmission over wires?

• ... that computer scientist Donald Sarason pioneered the abstract treatment of contractive containment and established a fruitful connection between the spaces Hb and the ranges of certain Toeplitz operators?

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