The first four stories are loosely connected by three main devices:

Reduplication is also the main device, if not the only one, which allows a word to change its syntactic category.

James Madison and his colleagues, 200 years ago, relied on two main devices to protect the freedom of Americans.

The main device was small, only as big as his head, but a number of long, articulated arms were tucked away in at the side.

But the main explosive device failed to detonate and nobody was hurt.

In addition to providing forward power, it is also used as a main braking device for the vehicles.

It appeared practically the moment the main device went down.

According to Stone, narrative is the main rhetorical device traditionally used by historians.

The crystalline composition of the glass skin is Dubbeldam's main device.

The monitor, main device of the computer, can be used to retrieve data.