Some have suggested that it stems from Hussenot's device, because it used film and "ran continuously in a light-tight box, ...

What can the 'black box' tell us about plane crashes? - The so-called “black box” is one of the most important pieces of ...

It's one of the most important pieces of forensic evidence following a plane crash: The so-called “black box."There are actually two of these remarkably sturdy devices: the cockpit voice ...