In the course of the day he finished his very simple device.

As you call it in your notes, a small, simple device.

Not a bad run for a simple device invented more than 60 years ago.

As engineers have long recognized, many simple devices do not age.

In the end I used the simplest device there is.

But can this simple device actually save money at the pump?

Rather, a cell phone is a device of convenience, clear and simple.

"That may well be simple devices to tell if the container has been opened or not."

It's a simple device, and like any effective political action, right or wrong, brilliant because it works.

This simple device has been in use, with various modifications, for thousands of years.