See Inside
Most errors are quickly forgotten. Others end up remaking the face of science
?| May 29, 2012
Image: Photograph by Dan Saelinger
In Brief
- Mistakes can push scientific understanding forward. Errors that touch on deep features of the world can be more valuable in the long run than narrowly correct ideas.
- Famously important scientific mistakes include Niels Bohr?s atomic model, the theory of continental drift (in its original form) and the experiments of Enrico Fermi that led to nuclear fission.
- Two less well-known errors also stand out: a vagabond physicist devised a faster-than-light telegraph in the 1980s. The hunt to uncover its flaws drove advances in quantum information theory.
- In the 1940s Max Delbr?ck, the key founder of molecular biology, based his research on a number of incorrect and misleading assumptions. He would go on to win a Nobel Prize.
Perhaps more than any other profession, science places a premium on being correct. Of course, most scientists?like most living humans?make plenty of mistakes along the way. Yet not all errors are created equal. Historians have unearthed a number of instances in which an incorrect idea proved far more potent than thousands of others that were trivially mistaken or narrowly correct. These are the productive mistakes: errors that touch on deep, fundamental features of the world around us and prompt further research that leads to major breakthroughs. Mistakes they certainly are. But science would be far worse off without them.
Niels Bohr, for example, created a model of the atom that was wrong in nearly every way, yet it inspired the quantum-mechanical revolution. In the face of enormous skepticism, Alfred Wegener argued that centrifugal forces make the continents move (or ?drift?) along the surface of the earth. He had the right phenomenon, albeit the wrong mechanism. And Enrico Fermi thought that he had created nuclei heavier than uranium, rather than (as we now know) having stumbled on nuclear fission.
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