On the Measurement of the Earth: New Approaches to Our Planet’s Distinctive Shape
Bibliographic record
Abstract
“On the Measurement of the Earth” continues the tradition, which dates back to ancient Greece and the time of Eratosthenes, of works on geodesy. The title is that of the lost work of Eratosthenes on the subject. Cherishing our planet through attention to its dimensions allows us to “know our place” and enjoy the wisdom that comes from this awareness. That the Earth has an ellipsoidal, not spherical, shape is well known. While Chimborazo’s resulting status as the point farthest from the Earth’s centre is generally understood, many other implications are unappreciated or hitherto undocumented. These include consideration of how to define the height of a mountain, calculation of the place closest to the Earth’s centre, a formula for calculating distance to the Earth’s centre for any point, a list of summits based on distance from the centre of the Earth and corrected for the geoid, calculation of the Earth’s fastest-moving points, and new “Seven Summits” lists. The new concept of terrahelion allows calculation of the land point on the Earth’s surface that comes closest to the Sun each year at perihelion. The insights that result from these new considerations of planetary shape provide new exploration opportunities.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.005 | 0.012 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.006 | 0.008 |
| Science and technology studies | 0.003 | 0.029 |
| Scholarly communication | 0.012 | 0.020 |
| Open science | 0.003 | 0.009 |
| Research integrity | 0.002 | 0.005 |
| Insufficient payload (model declined to judge) | 0.009 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".