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The Spörer Minimum is a hypothesized 90-year span of low solar activity, from about 1460 until 1550, which was identified and named by John A. Eddy in a landmark 1976 paper published in Science titled "The Maunder Minimum". It occurred before sunspots had been directly observed and was discovered instead by analysis of the proportion of carbon-14 in tree…
History & Science
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solar minimum activity spörer carbon-14 climate sunspot low named records cycle published maunder observed correlated correlation science sunspots periods found
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Spörer Minimum | is a | hypothesized 90-year span of low solar activity | 0.90 | text |
| Spörer Minimum | related to history | Solar | 0.60 | section |
| Spörer Minimum | related to history | For | 0.60 | section |
| Spörer Minimum | related to history | Earth's | 0.60 | section |
| Spörer Minimum | related to history | The | 0.60 | section |
| Spörer Minimum | related to history | Spörer | 0.60 | section |
| Spörer Minimum | related to history | Wilfried Schröder | 0.60 | section |
| Spörer Minimum | related to history | Miyahara | 0.60 | section |
| Spörer Minimum | related to Possible correlation with climate | Like | 0.60 | section |
| Spörer Minimum | related to Possible correlation with climate | Maunder Minimum | 0.60 | section |
| Spörer Minimum | related to Possible correlation with climate | Earth's | 0.60 | section |
| Spörer Minimum | related to Possible correlation with climate | This | 0.60 | section |
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