The string test, which is also called the Entero-test, is a test used to find parasites in the upper part of your gastrointestinal tract. To perform the test, you swallow a string. When the string is ...

String theory captured the hearts and minds of many physicists decades ago because of a beautiful simplicity. Zoom in far enough on a patch of space, the theory says, and you won’t see a menagerie of ...

Many physicists consider string theory our best hope for combining quantum physics and gravity into a unified theory of everything. Yet a contrary opinion is that the concept is practically ...