A machine measures the changes in cloudiness and prints a record of the results.

You're not trying to conduct a large amount of electricity - and often these machines are measuring changes in conductivity, not absolutes.

This machine measures electrical activity of the heart.

One such workshop uses bio-feedback machines to measure tension.

This machine would measure the different levels of tone and pitch when music was being played.

This machine measures the curvature of your central cornea.

The pressing machines measure 110 inches long.

The eye is kept open with clamps as a machine measures the eye and calculates the amount of the cornea that should be removed.

There also are questions of what different machines are measuring.