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

Struggling with your slides? Here's how Gemini's latest updates can help you polish your presentation, and who can access them.

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

Lehigh researchers create new method that improves consistency between predicted and observed data. An international team of mathematicians led by Lehigh University statistician Taeho Kim has ...

Take tape measures, once a palm-sized object that housed a metal ribbon that could snap back enthusiastically -- has been transformed into a palm-sized device with with a laser inside. Yup, the ...