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Results tagged with visible-light
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user 11890
Questions related to the perception and measurement of light (primarily in the visible range), its mathematical description, the reproduction of colors by different means, color combinations, etc. Please use the tag [electromagnetic-radiation] if you want to refer to the general form of light.
3
votes
2
answers
34k
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Why does your reflection suddenly turn upside down while slowly walking away from a curved m...
Many people should have realised, when looking into a concave curved mirror (or even a rather reflective spoon in that fact) at a close distance, you will see a slightly distorted reflection. But as y …
- 1,435
12
votes
3
answers
19k
views
What is the color of a mirror?
A mirror couldn't be white, as then you wouldn't be able to see your reflection so clearly. It wouldn't be transparent, as that then won't reflect.
So what color is it?
- 1,435
47
votes
8
answers
12k
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If I am travelling on a car at around 60 km/h, and I shine a light, does that mean that the ...
The title says it all.
If I was on a bus at 60 km/h, and I started walking on the bus at a steady pace of 5 km/h, then I'd technically be moving at 65 km/h, right?
So my son posed me an interesting …
- 1,435