The Century-Long Science Experiments

Some scientific experiments have been running continuously for over 100 years. These studies aim to track extremely slow changes that would be impossible to observe in a standard human career.

While most research wraps up in months or years, these rare projects require generations of scientists to pass the torch. Agricultural trials, for example, have kept plots of land under the same controlled conditions since the 1800s to study soil exhaustion. By actively manipulating these environments rather than just observing them, researchers uncover deep truths about nature. It is a testament to human patience that data collection can persist far beyond the lifespan of the person who started it.