We’ve all seen brightly-colored pieces of aluminum and can identify them as anodized. But what does that mean, exactly? A recent video from [Ariel Yahni] starring [Wawa] — a four-legged assistant — ...

The lustrous patina that protects the backside of Apple’s new iPad Mini isn’t just some cheap shellac or sealant coat—it’s actually “grown” on the metal itself in an electrochemical process known as ...