[Xasin] has been working on a DIY laser tag system for a while now ... IR receivers with more RGB LEDs wired to the pistol. A Ruby server on a Linux machine takes care of all the communications ...

Here’s a DIY laser rifle which can explode a balloon at around 150 feet (45 meters) as well as some angry chemicals at a similar distance. Since there are plenty of videos of lasers doing that ...

Each lesion was treated initially with the Q-switched ruby laser. Lesions that did not clear completely were retreated at 1 month (and, if necessary, at 2 months) with a Q-switched or normal-mode ...