Faster-than-light particles have spent decades in physics as both temptation and warning. They offered a way to test the limits of Einstein’s relativity, but they also seemed to wreck the basic order ...

Traditional causality detection methods, such as Granger causality and transfer entropy, require regularly sampled time series, make assumptions of linearity, or need very large datasets. This makes ...

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More When you look at a baseball player hitting the ball, you can make ...

Classical (as opposed to quantum) physics rests on the assumption that all physical quantities have well-defined values simultaneously. Relativity is based on clear-cut physical statements: the speed ...

Like a parent being pestered with endless questions from a young child, most people will now and again find themselves following an infinite chain of cause and effect when considering what led to some ...

Congress passed the National Childhood Vaccine Injury Act (P.L. 99-660) in 1986. The legislation was intended to bolster vaccine research and develop ment through federal coordination of vaccine ...