📁 Mysteries
5 Stories
Unsolved problems, conjectures, and mathematical puzzles
👤 Dorothy Hodgkin
Dorothy Hodgkin Decodes Penicillin's Secret Ring in 1945
Discover how Dorothy Hodgkin used X-rays and math to reveal penicillin's secret beta-lactam ring in…
👤 Roy Plunkett
The 'Empty' Steel Cylinder That Birthed Teflon
In 1938, a confused chemist cut open an 'empty' gas cylinder and discovered a weird white powder. H…
👤 Xu Xiake
The Drop That Carved the Stone Dragon
Discover how Xu Xiake debunked the dragon saliva myth in 1638 by proving water droplets carve karst…
👤 Otto von Guericke
The Horses That Couldn't Pull Apart
In 1654, Otto von Guericke used sixteen horses and two copper spheres to prove that air has weight,…
👤 Karl Landsteiner
The Clot That Spoke Blood's Secret
In 1901, Karl Landsteiner mixed blood on glass slides to find a hidden pattern. His discovery of bl…