The Man Who Listened to Plants Die

In 1895, Jagadish Chandra Bose stood before an audience in Calcutta and transmitted electromagnetic waves through walls and around corners, triggering a gunpowder charge seventy-five feet away. It was a year before Marconi filed his first patent. Bose had invented some of the fundamental components of radio science — the waveguide, the horn antenna, the semiconductor detector — and when people urged him to patent them, he refused. Knowledge, he said, belonged to everyone. Any attempt to profit from it was ethically wrong.

Then he turned his attention to plants.

Bose built an instrument called the crescograph, which could magnify the movements of a plant by ten million times. With it, he could watch a stem grow in real time, trace its response to light, to heat, to touch. He demonstrated before packed lecture halls at the Royal Institution in London that a plant given chloroform would go limp and still — asleep — and then wake up when the vapor cleared, its tiny movements resuming as if nothing happened.

Then he poisoned one.

The crescograph recorded a violent spasm of electrical activity — a sharp, frantic scrawl across the paper — and then a flat line. Bose called it the death spasm. The audience watched a plant die the way they might watch an animal die: with a shudder, and then with nothing.

He never patented the crescograph either.