Accidental Inventions
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A Melted Chocolate Bar Changed How We Cook Forever
Percy Spencer was standing near a magnetron when he noticed his chocolate bar had melted in his pocket. He didn't throw it away—he invented the microwave oven instead.
Accidental Inventions
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A Dog Covered in Burrs Changed the History of Fasteners
Velcro, the fastening system used on everything from astronaut suits to sneakers, was invented when a Swiss engineer got annoyed at burrs stuck to his dog's fur.
Accidental Inventions
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The Resistor That Rewired Medicine
A 1956 component mix-up led engineer Wilson Greatbatch to invent the implantable pacemaker—a device that would eventually save millions of lives. He grabbed the wrong resistor, and the mistake changed cardiac medicine forever.