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

Whether you’re a DIYer installing crown molding, a woodworker tackling tricky angles on a custom bookshelf, or a contractor ...

Explore innovative distance measurement methods for DIY projects. Learn about tools like UWB, barometers, and camera-based systems.

Researchers in Spain reviewed six models used to calculate incidence angle modifier (IAM) losses in photovoltaic systems. They identified the Martín-Ruiz model as the most comprehensive, as it ...

Our phones are all-in-one solutions for managing our personal lives, so can they also replace a bag of tools? We decided to ...

ABC News’ Devin Dwyer reports on the upcoming Supreme Court ruling on affirmative action, and what has driven Justices Clarence Thomas and Sonia Sotomayor to be on opposite sides on ending the policy.