artefacts: 272
This data as json
| rowid | artifactNumber | ObjectName | GeneralDescription | model | SerialNumber | Manufacturer | ManuCountry | ManuProvince | ManuCity | BeginDate | EndDate | date_qualifier | patent | NumberOfComponents | ArtifactFinish | ContextCanada | ContextFunction | ContextTechnical | group1 | category1 | subcategory1 | group2 | category2 | subcategory2 | group3 | category3 | subcategory3 | material | Length | Width | Height | Thickness | Weight | Diameter | image | thumbnail | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 272 | 1966.0217.001 | Manometer | Ferrous metal base & mount/ glass tube/ mercury/ metal hardware | 379 05 BR 2 | Leybold-Heraeus | Germany | 1 | Colourless transparent glass tube/ mottled grey painted base & mount/ plated scale | Used by Canada Science and Technology Museum. | Instrument used to measure small changes in atmospheric pressure (+/- 10 cm of hg) in physics experiments. | Liquid column gauges consist of a vertical column of liquid in a tube whose ends are exposed to different pressures. The column will rise or fall until its weight is in equilibrium with the pressure differential between the two ends of the tube. The difference in liquid level represents the applied pressure. The concept of the manometer is now used in aviation instruments and weather forecasting etc. | Physics | Pneumatics & air pressure | Gauges | metal->mercury;glass | 8 | 22.5 | http://source.techno-science.ca/artifacts-artefacts/images/1966.0217.001.aa.cs.png | http://source.techno-science.ca/artifacts-artefacts/images/1966.0217.001.aa.cs.thumb.png |
