Why don't trains make that sound anymore?

Name: Why don't trains make *that* sound anymore?
Uploaded: 2026-04-24T21:00:42+08:00
Description: If you've been on a modern train you won't have noticed that classic "clickety-clack" sound anymore. This is because train tracks are now one continuous piece of rail without gaps. But one long piece of metal without room to expand when hot is dangerous. Thus, engineers had to come up with an ingenious solution involving... jagged rocks?

6M views1 minApr 24, 2026

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Outlier vs channel median1.0×Comparable-age T+720h

Current velocity—needs two snapshots

Engagement3.0%likes + comments

ConfidenceLow3 comparable videos

Where it broke away

Views at the same time after publishing—not lifetime totals.

Last observed 10/4/2026, 6:33:49 PM

This video

Why it qualifies

At 720 hours, views are 1.0× the channel median.
The baseline uses 3 comparable long-form videos.

Comparison windowComparable-age T+720h

This video at comparable age—

This video now6M views

Channel median at comparable age3M views

Sample3 videos