Videos on constructive and destructive interference in wave dynamics and how waves breakup in shallow areas
Bibliographic record
Abstract
Wave physics is one of the most difficult sections of an undergraduate introductory physics course due primarily to the abstract nature of Huygens’ construction, which is critically important for understanding the key concept of constructive and destructive interference. Briefly, the result of constructive interference is a higher wave front while that of destructive interference is a trough. The concept can be visualized in the above video taken at Labrador Park, Singapore. In addition to the concept of constructive and destructive interference, the video also features another facet of water waves: its interaction with land. Specifically, it can be clearly observed that as a complete wave front approaches shallow areas, specific segments interacting with the area would breakup into foamy water. This is the underlying mechanism leading to the formation of large waves common in tsunami, where a water column is forced upwards by shallow land. The four videos in this series should be useful for educators in junior colleges and those teaching introductory undergraduate physics courses as a science in action video, which hopefully makes learning the difficult concept of wave interference easier and more fun. In addition, wave interactions as a tide is coming onto shore is also a valuable source of videographic information for understanding the hydrodynamics at Labrador Park shore, especially in inferring how fast or slow beach is forming or eroding, which can draw upon on optical evidence of wave crest breaking up into foamy water near shallow areas.
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 | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.111 | 0.058 |
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".