Template:Selected anniversaries/June 15: Difference between revisions

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||1844: Charles Goodyear receives a patent for vulcanization, a process to strengthen rubber. Pic.
||1844: Charles Goodyear receives a patent for vulcanization, a process to strengthen rubber. Pic.
File:Ernst Schroeder.jpg|link=Ernst Schröder (nonfiction)|1877: Mathematician and logician [[Ernst Schröder (nonfiction)|Ernst Schröder]] systematizes various systems of formal logic in a successful effort to prevent [[crimes against mathematical constants]].


||1878: Eadweard Muybridge takes a series of photographs to prove that all four feet of a horse leave the ground when it runs; the study becomes the basis of motion pictures. Pic.
||1878: Eadweard Muybridge takes a series of photographs to prove that all four feet of a horse leave the ground when it runs; the study becomes the basis of motion pictures. Pic.

Revision as of 02:30, 20 March 2020