Performance
3.07× medianBaseline: 20Phase 7.2
Candidate review
Evidence, disagreement and workflow stay separate. Approval remains a human action.
auto-a2fb8594a7ad-04 · v1
Do old wavy windows actually melt over centuries, or is there another explanation for their distorted glass?
Mechanism: misconception, common observation, explanation
Payoff: Refutes a popular myth: old windows are wavy because of how glass was made, not because glass flows.
Evidence
1youtubeDuplicates
0Exact component-level matchesLimitations
0No missing signal is coerced to zeroEvidence1
youtube · youtube.video
Fu4OmGknmSUOpen sourcePayload
{
"id": "Fu4OmGknmSU",
"etag": "diXXm2DE-_fym9yn96uP6enrXg0",
"kind": "youtube#video",
"snippet": {
"tags": [
"old windows glass",
"why old windows look melted",
"does glass flow",
"glass is a liquid myth",
"medieval glassmaking",
"wavy glass window",
"antique window glass",
"glass flowing myth",
"why glass is thicker at bottom",
"window glass distortion",
"ancient windows",
"medieval windows",
"surprising science facts",
"viral science shorts",
"educational shorts",
"facts you didn’t know",
"glass science",
"history facts",
"old window mystery",
"Interesting Fact Lab",
"YouTube Shorts"
],
"title": "This Ancient Window Looks Like It’s MELTING - But It Isn’t!",
"channelId": "UCPPsX5AH3PH59czjKzAryZQ",
"localized": {
"title": "This Ancient Window Looks Like It’s MELTING - But It Isn’t!",
"description": "Why do centuries-old windows look like the glass is slowly melting?\n\nMany antique panes are thicker at the bottom, but gravity is not pulling them downward. Their strange, wavy shape comes from old glassmaking methods that produced uneven sheets from the very beginning. The window was born crooked - it did not melt over time.\n\n#science #interestingfacts #glass #history #shorts"
},
"categoryId": "24",
"thumbnails": {
"high": {
"url": "https://i.ytimg.com/vi/Fu4OmGknmSU/hqdefault.jpg",
"width": 480,
"height": 360
},
"maxres": {
"url": "https://i.ytimg.com/vi/Fu4OmGknmSU/maxresdefault.jpg",
"width": 1280,
"height": 720
},
"medium": {
"url": "https://i.ytimg.com/vi/Fu4OmGknmSU/mqdefault.jpg",
"width": 320,
"height": 180
},
"default": {
"url": "https://i.ytimg.com/vi/Fu4OmGknmSU/default.jpg",
"width": 120,
"height": 90
},
"standard": {
"url": "https://i.ytimg.com/vi/Fu4OmGknmSU/sddefault.jpg",
"width": 640,
"height": 480
}
},
"description": "Why do centuries-old windows look like the glass is slowly melting?\n\nMany antique panes are thicker at the bottom, but gravity is not pulling them downward. Their strange, wavy shape comes from old glassmaking methods that produced uneven sheets from the very beginning. The window was born crooked - it did not melt over time.\n\n#science #interestingfacts #glass #history #shorts",
"publishedAt": "2026-08-02T20:05:36Z",
"channelTitle": "Interesting Fact Lab",
"defaultLanguage": "en",
"defaultAudioLanguage": "en",
"liveBroadcastContent": "none"
},
"statistics": {
"likeCount": "7",
"viewCount": "330",
"commentCount": "1",
"favoriteCount": "0"
},
"contentDetails": {
"caption": "false",
"duration": "PT35S",
"dimension": "2d",
"definition": "hd",
"projection": "rectangular",
"contentRating": {},
"licensedContent": false
}
}Advocate / Skeptic0
No evaluations recorded.
Duplicate signals0
No exact component matches.
Limitations0
No explicit limitations recorded.
Audit trail2
factual_reviewpending → passedshorts-intelligence-weekly-flow
approvalpending → approvedshorts-intelligence-weekly-flow