Bibliographic record
Abstract
The harp is an instrument with a set of plucked strings connected directly to the sound board. Thus the requirement that the sound board be very light for efficient radiation is pitted against the requirement that the strings be tight enough to maintain harmonicity. These factors have determined the evolution of the harp since Sumerian times. As materials and construction methods have improved, strings have become tighter and sound boards lighter. Large harps have total tensions in the range of ten kilonewtons. The material of choice for the sound board, usually spruce, is pushed to the limits of its strength, and even professionally built concert harps tend not to last more than a few decades. The strings themselves are made from a variety of materials, wrapped or plain, to balance the physical requirements of tension and feel, with the acoustical demands of harmonicity and tone. Historical materials such as copper and silk have given way to steel and nylon, although gut still has a niche in the mid-range of a concert harp. These physics and engineering issues will be considered in the context of practical harp construction.
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".