The History of Nuclear Power: Weapons, Energy and Fear

A failed attempt to create a super-strong adhesive accidentally results in a weak, reusable one—leading to the unlikely invention of the Post-it Note, which goes on to become one of the world’s most recognizable tools for work and creativity.

A failed wallpaper cleaning product gets a second chance as a classroom craft and accidentally becomes one of America’s most iconic toys.

In 1803 Italy, a scientist tests the idea that the body runs on electricity using an executed prisoner, sparking eerie questions about reanimation.

Remember when playtime meant tempting fate? From toy belts that fired speeding projectiles to high-powered pogo sticks that sent us soaring, these perilous playthings were made for kids—but their risks were anything but child’s play.