On the Measurement of the Earth by Eratosthenes
GPTKB entity
Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
ancient scientific work
|
| gptkbp:author |
gptkb:Eratosthenes
|
| gptkbp:conservationStatus |
original text lost
|
| gptkbp:dateWritten |
3rd century BCE
|
| gptkbp:historicalSignificance |
first known scientific measurement of Earth's size
|
| https://www.w3.org/2000/01/rdf-schema#label |
On the Measurement of the Earth by Eratosthenes
|
| gptkbp:knownFor |
later summaries by Cleomedes and Strabo
|
| gptkbp:language |
gptkb:Ancient_Greek
|
| gptkbp:methodDescribed |
use of sun angles at Syene and Alexandria
|
| gptkbp:result |
estimated Earth's circumference at about 39,375 km
|
| gptkbp:subject |
Earth's circumference
|
| gptkbp:bfsParent |
gptkb:Hellenistic_Egypt
|
| gptkbp:bfsLayer |
6
|