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Story history
Score and comment observations over time
Does Your Home or Classroom Need an Air Purifier? Make a Corsi-Rosenthal Box
HN #49,097,401 | submitted 2026-07-29 13:40 UTC | npr.org
48 observationsby ck2
18 points
Latest score
2 comments
Latest comments
+16
Score change
Rank history is not tracked yet in the current dataset, so this first slice focuses on score and comment movement.
Score
Range 2 to 18
2026-07-29 13:45 UTC2026-07-29 17:24 UTC
Comments
Range 1 to 2
2026-07-29 13:45 UTC2026-07-29 17:24 UTC
Observation history
Observation times are irregular and reflect when the tracker refreshed this story.
First 2026-07-29 13:45 UTCLatest 2026-07-29 17:24 UTC
| Observed at | Score | Comments | Rank |
|---|---|---|---|
| 2026-07-29 17:24 UTC | 18 | 2 | not tracked |
| 2026-07-29 17:19 UTC | 18 | 2 | not tracked |
| 2026-07-29 17:15 UTC | 18 | 2 | not tracked |
| 2026-07-29 17:10 UTC | 18 | 2 | not tracked |
| 2026-07-29 17:06 UTC | 17 | 2 | not tracked |
| 2026-07-29 17:01 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:56 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:52 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:47 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:42 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:37 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:33 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:28 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:24 UTC | 17 | 2 | not tracked |
| 2026-07-29 16:19 UTC | 16 | 1 | not tracked |
| 2026-07-29 16:14 UTC | 16 | 1 | not tracked |
| 2026-07-29 16:10 UTC | 16 | 1 | not tracked |
| 2026-07-29 16:05 UTC | 15 | 1 | not tracked |
| 2026-07-29 16:00 UTC | 15 | 1 | not tracked |
| 2026-07-29 15:56 UTC | 15 | 1 | not tracked |
| 2026-07-29 15:51 UTC | 14 | 1 | not tracked |
| 2026-07-29 15:46 UTC | 14 | 1 | not tracked |
| 2026-07-29 15:42 UTC | 14 | 1 | not tracked |
| 2026-07-29 15:37 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:32 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:28 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:23 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:19 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:14 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:10 UTC | 13 | 1 | not tracked |
| 2026-07-29 15:03 UTC | 12 | 1 | not tracked |
| 2026-07-29 14:59 UTC | 12 | 1 | not tracked |
| 2026-07-29 14:54 UTC | 11 | 1 | not tracked |
| 2026-07-29 14:49 UTC | 10 | 1 | not tracked |
| 2026-07-29 14:45 UTC | 10 | 1 | not tracked |
| 2026-07-29 14:40 UTC | 10 | 1 | not tracked |
| 2026-07-29 14:35 UTC | 9 | 1 | not tracked |
| 2026-07-29 14:31 UTC | 7 | 1 | not tracked |
| 2026-07-29 14:26 UTC | 5 | 1 | not tracked |
| 2026-07-29 14:21 UTC | 5 | 1 | not tracked |
| 2026-07-29 14:17 UTC | 5 | 1 | not tracked |
| 2026-07-29 14:12 UTC | 3 | 1 | not tracked |
| 2026-07-29 14:08 UTC | 3 | 1 | not tracked |
| 2026-07-29 14:03 UTC | 3 | 1 | not tracked |
| 2026-07-29 13:58 UTC | 3 | 1 | not tracked |
| 2026-07-29 13:54 UTC | 2 | 1 | not tracked |
| 2026-07-29 13:49 UTC | 2 | 1 | not tracked |
| 2026-07-29 13:45 UTC | 2 | 1 | not tracked |