No degree, no teacher, no permission — just the work.

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?

What do you do when a voice in your head orders you to write, the verse is catastrophic, and the Queen's polite rejection reads, to you, like a coronation?

Issued one pencil a week, he spent thirty-five years balancing the ledgers of a universe he'd crowned himself emperor of.

He showed up in overalls and gumboots, removed his dentures, and asked if he could run.

He kept a shoebox labeled Mouse Material; the archivist who finally opened it found the contents of a vacuum cleaner.

What happens when a former barber decides to stitch a beating heart by lamplight, twelve years after the most famous surgeon on Earth said it couldn't be done?

What kind of person buries a 1927 Hudson in their backyard and denies owning a car?

He grafted a human tooth onto a rooster's head to see what would happen. It grew.

He rode a caiman like a horse, built the world's first nature reserve, and accidentally set in motion the theory of evolution.

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 tripped on a stone in 1879 and spent the next thirty-three years building a palace out of the ones he found on the way home.