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50 points croes | 2 comments | | HN request time: 0.418s | source
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Sporktacular ◴[] 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 #
1. moralestapia ◴[] 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 #
2. donbox ◴[] No.42197454[source]
To me it felt like its instant in the downwards direction