When a Stihl weed eater starts acting up, a handful of common issues are usually to blame. Here's what to check before ...

String theory has long been touted as physicists' best candidate for describing the fundamental nature of the universe, with elementary particles and forces described as vibrations of tiny threads of ...

Add Yahoo as a preferred source to see more of our stories on Google. A person pulling apart a string trimmer showing a few of the parts - volodimir bazyuk/Shutterstock Picture this -- you're ready to ...

Since the 1980s, string theory has emerged as the leading candidate for achieving every physicist’s dream: reconciling general relativity with quantum mechanics and thereby finding a tidy explanation ...