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A jack is a mechanical lifting device. Most often, the term "jack" denotes equipment used to apply great forces or lift heavy loads. There are also smaller, more delicate jacks used as part of the action of keyboard instruments.
Standards, Music & Art
Explore the main themes, entities and connections around Jack (device). Start with the topic map, then use the sections below for research and deeper semantic analysis.
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jack jacks lift lifting used hydraulic bottle may also use bags mechanical vehicle vertical objects screw heavy tons house air
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| houses | instance of | For lifting structures | 0.80 | text |
| the hydraulic interconnection of multiple vertical jacks through valves enables the even distribution of forces while enabling close control of the lift.The screw version of the bottle jack works by turning a large nut running on the threaded vertical ram at the neck of the body | instance of | For lifting structures | 0.80 | text |
| an airplane.Rescuers also use airbags to lift heavy objects to help victims who are trapped under those objects | instance of | The objects can be of a smaller load such as an automobile or it can be a larger object | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.