Show HN: What if the speed of light was 5 km/h?

Posted 8 hours ago by dmitrybrant
324 points

https://rivendell.dmitrybrant.com/relativity/

I've always wanted to make a visualization where the speed of light was scaled down to human speeds, so that we could intuit relativistic effects with everyday objects. Here is the first version of it!

Show HN: What if the speed of light was 5 km/h?

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