THINGS THAT WERE INVENTED BY MISTAKE Marina Tortosa Freixinos Elena Tortosa Freixinos
POST-IT NOTES
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THE HISTORY ABOUT POST-IT NOTES It was invented by Art Fry. It was invented in 1978 The investigator really tried to improve the acrylate adhesive but by a mistake he creatred : Post-it notes The mistake was that the adhesive didnt stick with force and they use that to help people to remember important things and errand
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POTATO CHIPS Who
discovered or invented it? What year was it discovered ? What were they really trying to do? What was the mistake? How has this invention helped us? Elena Tortosa Freixinos
THE HISTORY ABOUT POTATO CHIPS Who discovered or invented it? Were invented by George Crum  What year was it discovered? Was discovered in 1853 What were they really trying to do? To the constant complaints of a regular customer who always scolder thin enough not to cut chips, decided to give him a lesson by cutting too thin, so they could not be precked with a fork. 
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What was the mistake? only for its fat and carbohydrates, but also by increased altiration of brain regions related to reward system food intake, sleep and motor areas. How has this invention helped us? It provides an average calories per 100 grams depending on their size
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THANKS FOR YOUR ATTENTION Marina Tortosa Freixinos Elena Tortosa Freixinos