They put a voltage between the tip and the sample so that an electric current will flow.

Ever so slowly, the space between the tip of the blade and me began to disappear.

There is also an air strip between the northwest tip of the lake and Highway 101.

The electron energy is set by the electrical potential difference (voltage) between the sample and the tip.

In some cases it is more reliable to measure the distance between the back of the skull and the tip of the bill.

Space exists between the thumb and the tip into which a small object can be concealed.

Tunneling current between the tip and sample is used as the signal.

The magnetic forces between the tip and sample are sensed.

Most likely, the decking between the building line and the tip of the prow will have to be removed.

In this type of operation, the current is measured in the small space between the tip and the sample surface.