Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Interviews How To Train Your Dragon's Director Explains What He's Already Worried About Filming For The Second Movie Movies I Rewatched How To Train Your Dragon 2 ...

Forest ecosystems play a vital role in the global carbon cycle. While the significance of tree mycorrhizal fungi in this ...

For many years, drivers in Kyle, Texas, have slowed down to see a famous local landmark: a huge live oak that leans close to Old Stagecoach Road. This tree, which has been nicknamed Jolene but is more ...

The Maple Leafs' head coach wants to see some consistency in the offensive zone after changing all four lines on Thursday. Toronto Maple Leafs head coach Craig Berube said on Wednesday he was thinking ...

Some Linux distributions require a bit of extra work. Your effort will pay off in big ways. These five distributions are my favorites Years ago, I actually preferred ...

New data show resilience among the rainforest’s giants, though scientists warn that nutrient limits and rising heat could end ...

The provincial government has requested that Alberta teachers return to work Oct. 20 and enter into enhanced mediation — but the Alberta Teachers’ Association said they will not come quietly. Premier ...

A collection of studies that chart how mammalian brain cells grow and differentiate is a ‘very valuable’ tool for ...

Learn how to make a wooden Christmas ornament using a lathe and basic tools. In this final video of the 6 Days of Beginner Woodturning Projects series, I use claro walnut and share essential tips for ...

DENVER (KDVR) — Police in Lone Tree are warning of a scam involving Bitcoin that is targeting the city’s residents, which several residents have already lost tens of thousands of dollars to. The ...