In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...

Every day, millions of people pass through walk-through metal detectors at airports, schools, concert venues, courthouses, ...

Expert DIYer April Wilkerson builds a backyard foundry for metalworking experiments and projects. Dick Cheney Lived Without a ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...