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

Three weeks before the demonstration that would have made him the undisputed inventor of cinema, he boarded a train and stopped existing.

The man who invented vulcanized rubber spent $30,000 he didn't have to build a palace of rubber furniture inside a building made of glass.

She quit the BBC Radiophonic Workshop within months of founding it, because the hearing-protection rule was applied only to her.

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

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.

What does an 82-year-old who just solved the longitude problem do for an encore?

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.

Who lobbies the League of Nations, twice, to adopt a calendar he designed himself?

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 did Victorian surgeons do when one quiet Quaker suggested they stop wearing coats stiffened with old blood?

Why did a woman in 1888 push an automobile down an alley at dawn while her husband slept upstairs?