While some scientific discoveries are made by following logical pathways, others are made by accident, often while the discoverer was trying to accomplish something else entirely. Learn about the accidents behind cheap purple dye, artificial sweetener, and non-stick coating.

The American Chemical Society teamed up with Chemical Heritage Foundation and animator Sean Parsons to bring this episode of the web series Reactions, outlining the surprising history behind products we often take for granted.

[via Laughing Squid]