Template:Selected anniversaries/April 6: Difference between revisions

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||1913: Adolf Slaby dies ... electronics pioneer. Pic.
||1913: Adolf Slaby dies ... electronics pioneer. Pic.
||1920: Julius Elster dies ... teacher and physicist. He and Hans Friedrich Geitel invented the photocell. Pic search good: https://www.google.com/search?q=Julius+Elster


||1920: Jack Cover born ... pilot and physicist, invented the Taser gun. Pic.
||1920: Jack Cover born ... pilot and physicist, invented the Taser gun. Pic.

Revision as of 08:01, 11 March 2019