Tech History Today – June 15

1869, John Wesley Hyatt and Isaiah Hyatt received a U.S. patent for pyroxylin plastic, which they called “Improved Method of Making Solid Collodion” (No. 91,341). The process was slightly flammable, but was essential to the development of plastics.

In 1878 – Photographer Eadweard Muybridge used high-speed photography to capture a horse’s motion. The photos showed the horse with all four feet in the air during some parts of its stride. Stop-motion photography was born.
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In 1949 – Jay Forrester wrote down a proposal for core memory in his notebook. Core memory was the standard for computer memory until advances in semiconductors in the 1970s.

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