“Pop, Pop, Pop.” She Heard Her Brain in Action
Brain-computer interfaces are opening new possibilities.
How Einstein Lost His Bearings, and With Them, General Relativity
By 1913, Albert Einstein had nearly completed general relativity. But a simple mistake set him on a tortured, two-year reconsideration of his theory. Today, mathematicians still grapple with the issues he confronted.
It’s Time to Make Human-Chimp Hybrids
The humanzee is both scientifically possible and morally defensible.
Why Women Choose Differently at Work
Psychologist Susan Pinker on the role of choice in gender differences in the workplace.
Is Quantum Theory About Reality or What We Know?
Physicists know how to use quantum theory—your phone and computer give plenty of evidence of that. But knowing how to use it is a far cry from fully understanding the world the theory describes—or even what the various mathematical devices scientists use in the theory are supposed to mean.
Darwin’s Lost Beetle Is Back
It’s difficult to overstate the importance of finding an original Darwin specimen, collected during the Beagle’s first voyage. But finding it, and realizing it was a lost specimen collected by Darwin, was just the first step in a much longer journey.