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

Have you ever seen photos of retro movie sets where the cameras seem to be bedazzled with lenses? Of course you can only film ...

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 ...