When gas or water pipes are laid, much time and labor are expended, and consequent expense incurred in joining the branch pipes to the main, and in connecting the supply pipes to the branch.

Plumbing fittings vary by size, purpose and material. You often must tie together pipes of different materials with transition fittings. The materials in common use today — copper, PVC and CPVC ...

We suspect that [Les Wright] has pew-pewed his way through more than a few laser projects in his lab, including his latest experiments with fiber coupling of lasers. The video below is chock full ...