A single probe might produce a pattern unique to one person in a hundred.

It couldn't get enough resolution through a single probe.

On the other hand, it shares the limitations of a single probe concerning complicated electronics and poor time resolution.

A single probe is used to establish the connection using the shortest path.

Sometimes both pressure sources are combined in a single probe, a pitot-static tube.

Our resources have dwindled to *Needle* itself and a single probe.

Spend $2 billion on a single probe, and you are able to get a decade or more of scientific discovery out of it.

"They don't want a single probe to be detected until they're ready to wreak havoc with all of them at once."

The problem could, of course, have been settled by sending a single probe through the clouds of Europa.

In order for this to be effective using a single probe, the parts must be completely flat and measured on a perfectly flat surface.