PCK

Lincoln always had one of these in the White House.

A device used for viewing Microscopic things.

A sign usually used to warn you of dangerous Chemicals.

A Weight measuring device with a Digital Read-out.

Something usually containing a Saline (Salt & Water) solution.

A picture of someone’s Humerus, Ulna and Radius.

This is a Sphygmomanometer, used to measure Blood Pressure.

A symbol used to represent Infinity.

A Caduceus, a medical symbol based on the God Hermes' staff.

In 1714, Fahrenheit invented the 1st Mercury version of these.

The longest one of these ever made was over 36 feet long.