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Why Japan has blue traffic lights instead of green

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Re: Why Japan has blue traffic lights instead of green

#171
post #165
post #95

Earlier quoted context omitted.

I am looking out my hotel room window in Hiroshima in this very instant, and I even got my wife to confirm it: The traffic lights definitely are GREEN.

Please report the exact wavelength for verification.

… in electron-volts to the precision of 10 decimal places.

Re: Why Japan has blue traffic lights instead of green

#172
To this day I insist that American traffic lights are red, orange and green. I know what yellow looks like and that is not yellow, it is orange. As a child, I couldn't understand the concept of calling it yellow despite it emitting orange light. Now, I understand the concept of colloquially referring to things by incorrect names, but I still hate it.

Re: Why Japan has blue traffic lights instead of green

#173

Earlier quoted context omitted.

I'm glad you mentioned that you had your wife confirm, because I'm convinced my wife sees more colours than I do, and I can't be the only one. I've had this exact discussion. What colour is this? Blue. No, can't you see it's green? Maybe it has some green in it Okay, so is it blue or green? Yes! Why did you ask me then?

Yes, on average women can perceive more colors than men [1] Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar. [1] https://pubmed.ncbi.nlm.nih.gov/21675035/ [2] https://www.xrite.com/hue-test

>[2] https://www.xrite.com/hue-test

" Best Score for your Gender -1000000 Worst Score for your Gender 1700045439

About your score: A lower score is better, with ZERO being a perfect score. The circle graph displays the regions of the color spectrum where your hue discrimination is low."

I hate this kind of stuff. WTF is that Best Score?

Re: Why Japan has blue traffic lights instead of green

#174
post #165
post #95

Earlier quoted context omitted.

I am looking out my hotel room window in Hiroshima in this very instant, and I even got my wife to confirm it: The traffic lights definitely are GREEN.

Please report the exact wavelength for verification.

There's an app for that

Re: Why Japan has blue traffic lights instead of green

#175

To this day I insist that American traffic lights are red, orange and green. I know what yellow looks like and that is not yellow, it is orange. As a child, I couldn't understand the concept of calling it yellow despite it emitting orange light. Now, I understand the concept of colloquially referring to things by incorrect names, but I still hate it.

In New Zealand the middle light is (or at least was) called amber.

Now I live in the US and the lights here look the same as NZ but I'm pretty badly colorblind so they're just words to me :)

Horizontal rather than vertical lights were new to me here. They make sense because they don't swing around in the wind.

Re: Why Japan has blue traffic lights instead of green

#176

Earlier quoted context omitted.

I'm glad you mentioned that you had your wife confirm, because I'm convinced my wife sees more colours than I do, and I can't be the only one. I've had this exact discussion. What colour is this? Blue. No, can't you see it's green? Maybe it has some green in it Okay, so is it blue or green? Yes! Why did you ask me then?

Yes, on average women can perceive more colors than men [1] Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar. [1] https://pubmed.ncbi.nlm.nih.gov/21675035/ [2] https://www.xrite.com/hue-test

I wonder if there might be a language aspect to this, with males in the US generally having less familiarity with words for the in between colors leading to more difficulty distinguishing between them, with people with more words for greenish shades for example having an easier time seeing different shades of green.

https://boingboing.net/2011/08/12/how-language-affects-color...

Re: Why Japan has blue traffic lights instead of green

#177

Earlier quoted context omitted.

It's juice of the fruit-called-orange. How is that not orange juice? We don't call apple juice "red juice" or grape juice "purple juice". If there's a language in the world where the color and the fruit aren't the same word, I've yet to learn it.

> If there's a language in the world where the color and the fruit aren't the same word, I've yet to learn it. The fruit has the color orange when it's ripe. It's probably one of the most orange things you'll see on nature. But most people don't even eat it ripe (throwing it away before that point), and the association between the fruit and the color just flies over a lot of people's heads. And yeah, the internals of…

If the fruit were very unripe, when it has a green rind... I would still call it an orange, not a "green".

It was the name of the fruit before it was the color of the fruit, if I'm not mistaken. Though, I suppose I'm only speculating there. It may have been awhile since I've eaten one, and I prefer the purple Moros anyway, but they've always seemed to be rather orange to me. Quite distinct from the flesh of a lemon, for instance.

Re: Why Japan has blue traffic lights instead of green

#178

Earlier quoted context omitted.

Yes, on average women can perceive more colors than men [1] Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar. [1] https://pubmed.ncbi.nlm.nih.gov/21675035/ [2] https://www.xrite.com/hue-test

>[2] https://www.xrite.com/hue-test " Best Score for your Gender -1000000 Worst Score for your Gender 1700045439 About your score: A lower score is better, with ZERO being a perfect score. The circle graph displays the regions of the color spectrum where your hue discrimination is low." I hate this kind of stuff. WTF is that Best Score?

Hahaha:

> Best Score for your Gender -2147483648

> Worst Score for your Gender 2147483647

Re: Why Japan has blue traffic lights instead of green

#179
post #116

Earlier quoted context omitted.

Can you tell me the location of an actual blue traffic light in Japan?

I went ahead and geoguessr'd one of the images of a "blue" traffic light, and came to the following: https://maps.app.goo.gl/EjYmH34YC19y3fVt9 There is another one to the right as well. They look very blue when turned off, but cyan/green when turned on.

The daylight and the contrast with the trees don't help, either.

Re: Why Japan has blue traffic lights instead of green

#180

Earlier quoted context omitted.

Yes, on average women can perceive more colors than men [1] Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar. [1] https://pubmed.ncbi.nlm.nih.gov/21675035/ [2] https://www.xrite.com/hue-test

>[2] https://www.xrite.com/hue-test " Best Score for your Gender -1000000 Worst Score for your Gender 1700045439 About your score: A lower score is better, with ZERO being a perfect score. The circle graph displays the regions of the color spectrum where your hue discrimination is low." I hate this kind of stuff. WTF is that Best Score?

It goes from -2147483648 to 2147483647 for me, which I'm interpreting as "our langauge doesn't distinguish signed from unsigned integers, and nor do our developers". Possibly there's also some lack of validation of client-side data involved.
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