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An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features, such as the ecliptic. As such, it…
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sphere armillary celestial ecliptic sun globe also chinese used century portugal rings earth meridian astronomer use astronomers fixed horizon ad
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Ibrahim al-Fazari | instance of | carrying two small tubes positioned opposite each other and supported by a vertical plumb-line.Medieval Middle East and EuropePersian and Arab astronomers | 0.80 | text |
| Abbas Ibn Firnas continued to build | instance of | carrying two small tubes positioned opposite each other and supported by a vertical plumb-line.Medieval Middle East and EuropePersian and Arab astronomers | 0.80 | text |
| improve on armillary spheres | instance of | carrying two small tubes positioned opposite each other and supported by a vertical plumb-line.Medieval Middle East and EuropePersian and Arab astronomers | 0.80 | text |
| Ibrahim al-Fazari | instance of | Medieval Middle East and EuropePersian and Arab astronomers | 0.80 | text |
| Abbas Ibn Firnas continued to build | instance of | Medieval Middle East and EuropePersian and Arab astronomers | 0.80 | text |
| improve on armillary spheres | instance of | Medieval Middle East and EuropePersian and Arab astronomers | 0.80 | text |
| Armillary sphere | related to China | Throughout Chinese | 0.60 | section |
| Armillary sphere | related to China | Chinese | 0.60 | section |
| Armillary sphere | related to China | The Chinese | 0.60 | section |
| Armillary sphere | related to China | According | 0.60 | section |
| Armillary sphere | related to China | Joseph Needham | 0.60 | section |
| Armillary sphere | related to China | China | 0.60 | section |
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