Styled like classic underwear ads — grayscale, chiseled abs, tight boxer briefs — the twist comes in the printing. The briefs ...

Ever wonder how those scratch and sniff stickers manage to pack a punch of aroma into what looks like ordinary paper? The technology behind it is deceptively clever, and has been used everywhere ...

And yes, it is apparently named after “Chappie,” the 2015 Neil Blomkamp-directed science-fiction movie where a police robot is stolen by members of the South African rap group Die Antwoord and ...