Use your finger to test for any liquid on the outside of each canister. Expected results: More moisture appears on the outside of the film canister that is placed under the cup with a lot of water vapor in it. The film canister under the cup with the dry classroom air has less moisture on it.
Technical knowledge is a theoretical ability to face a technical problem, analyze it, describe it, solve it, talk about it. Commonly found in teachers and drawing table engineers. Technical skill is the practical ability to execute the above.
technical. adj. 1. of, relating to, or specializing in industrial, practical, or mechanical arts and applied sciences: a technical institute. 2. skilled in practical and mechanical arts rather than theoretical or abstract thinking. 3. relating to or characteristic of a particular field of activity: the technical jargon of linguistics. 4. existing by virtue of a strict application of the rules or a strict interpretation of the wording: a technical loophole in the law; a technical victory.