The Popsicle, whose origins go back to San Francisco where Frank Epperson, age 11, accidentally left a mix of water and soda powder outside to freeze overnight.George de Mestral came up with the idea after a bird hunting trip when he viewed cockleburs stuck to his pants under a microscope and saw that each burr was covered with tiny hooks. Raytheon scientist Percy Spencer first patented the idea behind it after noticing that emissions from radar equipment had melted the candy in his pocket. The use of sensors to prevent automobile air bags from killing children, which came from a chair developed by the MIT Media Lab for a Penn and Teller magic show.Silly Putty, which came from a failed attempt at synthetic rubber.The Post-It Note, which emerged after 3M scientist Spencer Silver produced a weak adhesive, and a colleague used it to keep bookmarks in place on a church hymnal.Other examples of serendipity in inventions include: The origin of cheese, for example, possibly originated in the nomad practice of storing milk in the stomach of a dead camel that was attached to the saddle of a live one, thereby mixing rennet from the stomach with the milk stored within. Andrew Smith, editor of The Oxford Companion to American Food and Drink, has speculated that most everyday products had serendipitous roots, with many early ones related to animals. The term "serendipity" is often applied to inventions made by chance rather than intent. The word has been exported into many other languages, with the general meaning of "unexpected discovery" or "fortunate chance". It is derived from the Sanskrit Siṃhaladvīpaḥ (Siṃhalaḥ, Sri Lanka + dvīpaḥ, island). The princes, he told his correspondent, were "always making discoveries, by accidents and sagacity, of things which they were not in quest of." The name comes from Serendip, an old Persian name for Sri Lanka (Ceylon), hence Sarandib by Arab traders. In a letter he wrote to his friend Horace Mann, Walpole explained an unexpected discovery he had made about a lost painting of Bianca Cappello by Giorgio Vasari by reference to a Persian fairy tale, The Three Princes of Serendip. The first noted use of "serendipity" was by Horace Walpole on 28 January 1754. Serendipity is a common occurrence throughout the history of product invention and scientific discovery. Serendipity is an unplanned fortunate discovery.
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