The flashlight I use most often is built into my phone and it’s around 50 lumens. It works fine up close, but there are pocket-sized flashlights that can illuminate an entire football field. There are ...

Like robots, 3D-printing, space, and a handful of others, laser beams are undoubtedly classified under the “cool” side of science/technology. In the latest laser-beam related findings, Physicists from ...