Tiny flaws in diamonds hold the secret to the formation of the first continents. In a new study, researchers used inclusions — imperfections derided by jewelers but valuable to scientists — to trace diamond formation. They found that the sulfide minerals inside the inclusions were last at the surface of...
The world's most precise clocks run at a steady pace, messing up by only about 1 second every 300 million years. But the brain takes those rhythmic seconds and makes its own sense of time — stretching the ticks and scrunching the tocks. But why can't the brain keep time...