天空вℓσи∂ @skyblond@qoto.org

The white glow stick. You can easily recognize color under this glow stick. But the brightness is really bad. The spectrometer didn't get enough light, so you can see the sub 400nm band is really high (an indicator of noise).

Good for recognizing color, but don't recommend for emergency lighting.

Despite I haven't tested the blue one using the spectrometer, based on my experience (and the fact that blue one has the similar initial brightness, advertised by seller), I think the best one is the green one, it's bright, an with some effort you can distinguish color. Then followed by the yellow one, it's not as bright as green for the 10h one, but if you can accept shorter duration, the 1hour one is really bright, although it's hard to distinguish blue and green. Then is white one, unless you really need to see different colors, otherwise don't use that for emergency lighting. It's dark and your color vision doesn't work until you zoom in very close (less than 10 cm).

The not recommended one is blue. It actually distracts your eyes since blue lights are high energy.

After all this time, I still don't like maven.

Green one

really? Now? We Chinese people realized this issue at least ten years ago. Due to the gfw, openvpn is already an obsolete technology

Almost half of the year has passed, but I'm still not used to typing 2024...

Oh man, don't tempt me to order an illuminometer.

Also I'm thinking to keep those exhausted sticks and shining up flashlight to them. Would they glow again?

Start testing glow sticks. Today's two are identical in terms of light: 558nm ± 2nm. The 1 hour one is super bright but decayed super fast. It barely glows at 1 hour. But at the beginning, it measured 668 lx, reported by my phone, when placing the stick on the screen.

The 10 hours one is not that bright, but still good for reading. It feels much easier to see compared to the blue glow stick: the blue one is bright, but it makes my eyes exhausted. The yellow one is much better. Since human eyes are much more sensitive to green light, I would expect the green one to be the best. But I'm also curious about the white one.

And with the last two images, you can tell the lacking of blue makes the color very off. You can hardly see blue. I mean, that's expected, and I know this. But seeing with my own eyes is just amazing.

Goverment: AI can cause harm
Meanwhile, on youtube:

3Bad1Apple but with better singing
https://youtube.com/watch?v=U3eW10ISDgE&si=k6EEUJCrrGwQa1ju

Bird, but furry

That's a weird looking bird, LOL

Last weekend, me: WTF why it stops working???

Also me, several hours later: I forget to uncomment the line where I commented out for debuging.

Update: To find out which color is best for illuminating surroundings, I ordered a cheap (50 USD) spectrometer.

@nixCraft For most of my programming questions, it can't give a valid solution. I mean, technically, if it gives a solution, you can probably find the same solution after reading several stackoverflow answers and documents.

Really want to share this YouTube video before I go to sleep. Vocaloid is quite old, considering we have machine learning models to generate really real voices and even songs. But this video really amazed me not because the voice, in contrast, the vocal is indistinguishable to me. But the idea behind the video surprised me. I never thought you could express something in this way. Of course it's almost 3am in the midnight so I won't spend too much time to type that "something" in English. Just watch the video.

ピノキオピー - 匿名M feat. 初音ミク・ARuFa / Anonymous M
https://youtube.com/watch?v=yiqEEL7ac6M&si=753CKm8K3QUFM9tq