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50 points croes | 3 comments | 20 Nov 24 13:14 UTC | HN request time: 0.739s | source

1. Sporktacular ◴[20 Nov 24 17:03 UTC] No.42195952[source]▶

Why does the refraction appear instantly below the bottle rather than taking time for the light to propagate there?

replies(1): >>42196077 #

2. moralestapia ◴[20 Nov 24 17:15 UTC] No.42196077[source]▶

Great observation, however I do feel like it's not instant but feels like it's following behind the main pulse, so should be accurate.

replies(1): >>42197454 #

3. donbox ◴[20 Nov 24 19:51 UTC] No.42197454[source]▶

To me it felt like its instant in the downwards direction

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