Some combinations of material and machine just don't sound right, such as a wooden airplane the size of a jetliner (the Spruce Goose) or an airship full of extremely flammable gas (the Hindenburg).

MANILA, Philippines — Before gadgets ruled playtime, kids played with paper, scissors and glue. For many 2000s kids, that imagination took shape as Foldabots, the Filipino do-it-yourself cardboard ...

OROVILLE — Some after-school program staff members knew next to nothing about robots last Wednesday. By Friday, though, they could say that they had built one, learned to program it and even competed ...