Surprising Things Invented by Mistake

Inventions That Were Total Accidents Radiocity By Radiocity Team Published Jun 06, 2025 [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Penicillin Discovered by Alexander Fleming in 1928 when mold accidentally grew in his petri dish, it became the first true antibiotic. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Microwave Oven Percy Spencer noticed a chocolate bar melting in his pocket while working near radar equipment — and boom! Microwaves were born. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Post-it Notes A failed attempt at making a super-strong adhesive led to the weak-but-sticky formula perfect for removable notes. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Potato Chips Chef George Crum sliced potatoes super thin in anger to annoy a customer — they loved it, and chips were born! [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

X-Rays While experimenting with cathode rays, Wilhelm Roentgen accidentally discovered X-rays, revolutionizing medicine. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

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