Discoverers who found light in urine and hydrogen in the air.

What does geometry sound like when you can only hear it described?

He won the 1906 Nobel Prize for proving the brain is built from separate cells. He found out by drawing them, on an ink-stained tablecloth, for fifty years.

A deaf arithmetic teacher in a Kaluga log cabin derived the rocket equation between marking schoolboys' sums, and kept a trapdoor in his ceiling his family called the door to outer space.

A Soviet surgeon coined the word transplantology, taught the man who did the first human heart transplant, and spent his afternoons sewing puppy heads onto German shepherds.

What kind of man asks his colleagues to poke him awake if he stops breathing, and considers a perforated eardrum a social asset?

Why would the man who invented the bit build a unicycle that bobbed up and down on purpose?

A country doctor famous for birds made two small cuts in his gardener's eight-year-old son — and then did it again, and again, for years.

How do you lose the face of the man who coined the word cell, wrote a law of physics, and rebuilt half of London?

What kind of person gets laughed out of the British scientific establishment and leaves giggling?

He correctly described the structure of all matter in the universe. Plato tried to have his books burned. Plato won.

He inoculated himself with a patient's discharge to settle a scientific question, and his reputation was so enormous that nobody checked his work for fifty-one years.

He built a small closet, filled it with the vomit of the dying, and sat inside breathing deeply — all to prove yellow fever wasn't contagious.