One of the joys of browsing secondhand shops is the possibility of finding old, perhaps restorable or hackable, electronics at low prices. Admittedly, they usually seem to be old flat-screen TVs, ...

When 12-year-old Matteo Mucchetti mapped out an amusement-style attraction that he wanted to create in his family’s basement and then showed it to his older brother Nico, the high-school sophomore was ...