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A laser pointer at 2B FPS [video]

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615 points thunderbong | 1 comments | 19 Oct 25 06:42 UTC | HN request time: 0.207s | source
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bjt12345 ◴[21 Oct 25 06:06 UTC] No.45652935[source]▶
Could redshift/blueshift explain why the light appeared to move at different velocity when he moved the camera to another position?
replies(2): >>45653135 #>>45653149 #
1. Intermernet ◴[21 Oct 25 06:50 UTC] No.45653149[source]▶
He actually explains it. It's due to the round trip time increasing from further away water droplets when filmed at an oblique angle. Light hitting a droplet 3m away has a 3x times longer round trip than light hitting a droplet 1m away.