Small Inventions That Made a Big Difference

Pigment * flint (firestarter) * sewing needle * fish-hook * gnomon * brick * stirrup * pencil * tin cans * postage stamp * ball bearings * mail order catalogue * paperclip * safety pin * safety match * spark plug * zip * credit card * Velcro * tampon * teabag * button * toilet paper * condom * deodorant * sliced bread * keys * Penicillin * Post-it notes * and more.

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• História da engenharia e da tecnologia
• Invenções e inventores
• Engenharia mecânica

inventions; inventors; innovation; entrepeneurs; funny book; gift book; smartphone history; silicon valley; technological revolution; engineering; nasa; electricity; activism; weird inventions; feminist history; consumerism; capitalism; intellectual property; patents