Why Stop Signs Are Red: The Science of Retroreflection
Published 11 Aug 2022 · 20 daily observations recorded · last updated 2026-09-29
Recent growth
Performance history
Every observation TubeSum recorded, plotted as measured.
Based on 20 observations · last observed Sep 29, 2026 · straight lines connect consecutive observations — TubeSum does not measure the days between them.
All observations
The same points the chart plots, as exact numbers. Gaps mean no observation was taken that day.
| Date | Views | Avg views / hour | Channel median |
|---|---|---|---|
| 2026-09-29 | 871,511 | 24.1 | — |
| 2026-09-28 | 871,501 | 24.1 | — |
| 2026-09-27 | 871,482 | 24.1 | — |
| 2026-09-26 | 871,462 | 24.1 | — |
| 2026-09-25 | 871,448 | 24.1 | — |
| 2026-09-24 | 871,434 | 24.1 | — |
| 2026-09-23 | 871,427 | 24.1 | — |
| 2026-09-22 | 871,419 | 24.2 | — |
| 2026-09-21 | 871,414 | 24.2 | — |
| 2026-09-20 | 871,404 | 24.2 | — |
| 2026-09-19 | 871,396 | 24.2 | — |
| 2026-09-18 | 871,393 | 24.2 | — |
| 2026-09-17 | 871,384 | 24.2 | — |
| 2026-09-16 | 871,375 | 24.3 | — |
| 2026-09-15 | 871,365 | 24.3 | — |
| 2026-09-14 | 871,357 | 24.3 | — |
| 2026-09-13 | 871,343 | 24.3 | — |
| 2026-09-12 | 871,332 | 24.3 | — |
| 2026-09-11 | 871,321 | 24.3 | — |
| 2026-09-09 | 871,295 | 24.4 | — |
Content analysis
Transcript, chapters and structure for this video live on its analysis page — performance and content are separate documents on TubeSum.
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