adeelarshad82 writes "Following a tour of a 3D printer factory, analysts at PCMag wanted to explore the option of building a 3D printer themselves. With the help of a 3D printer manufacturer, Buildatron, they were able to compile a step-by-step guide on how to build a 3D printer."
Today's scientific question is: What in the world is electricity?
And where does it go after it leaves the toaster?
-- Dave Barry, "What is Electricity?"