Recent comments in /f/todayilearned

vanelle01 t1_j7ndv09 wrote

Oh yeah I know it was sp, got to excited about the whole thing happening.

However I did not feel “heavy weight on my chest” this time.

I’ve had multiple sp experience’s in the past, which where right out terrifying tho. This one not so much.

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CustomHW t1_j7ncih3 wrote

This really reinforces my belief that no matter what you accomplish, everyone will eventually forget you. It's family that really matters. All the other peripheral stuff (career, money, esteem, etc.) is just noise. I would gladly trade all of it in for just one more hour with my lost loved ones.

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Splice1138 t1_j7n8hfi wrote

The page I read it on might have been simplifying things, not saying that's exactly how it's implemented. I do know if you play around with subsampling RGB chanels via Photoshop, for example, blue is the least noticeable, red somewhat, green very noticeable.

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rockmsedrik t1_j7n1326 wrote

Agreed, best to have forms of RF away from sleep spaces, current situation has a single room for both work and sleep, so black out curtness, sound absorbing wall blankets, and blacking out all BLUE LED's on things. Even the RED LEDs on power strips are too bright now. Have to tape over them as well.

Thankful to Lévoit Air purifiers for having the option to TURN OFF the LED panel. Also thankful to Govee humidifier for having a "LED panel brightness, and schedule on and off" settings.

More electronics need to think about the brightness in dark rooms. Light pollution is a ongoing battle.

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DavoTB t1_j7mwm1w wrote

Rod McKuen was wildly popular as a poet and songwriter in the sixties. Two of his more famous songs were translated from Jacques Brel, (“If You Go Away” and “Seasons In The Sun.”) He wrote an Academy Award-nominated song, “Jean” (from the film, “The Prime of Miss Jean Brodie,” ) as well as “A Boy Named Charlie Brown.”
His singing voice was uncommon, raspy and quite rough-sounding, yet his albums sold extremely well in the era. However, those and the books he published did not have the lasting impression on the public as tastes changed.

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Couldbehuman t1_j7mv5wo wrote

>I also read about it being used in image compression. If you split an image into R, G, and B channels, you can save the B at half resolution and the difference is nearly imperceptible to human eyes, whereas it is easily seen if you do that with R or G.

Never heard of chroma subsampling happening in RGB, generally that's converted to something like YUV which is a Y channel of luminance (about 58% derived from the green channel) and two UV chrominance channels. Both channels of chrominance are then subsampled horizontally by 50%, reducing 1/3 of your original data without even getting to the compression stage. Pretty much all compressed video you ever watch has the chrominance subsampled 50% vertically as well, meaning you've cut the original data size in half.

Point is, not just blue getting subsampled, and since that's what everyone is constantly watching it's pretty safe to say it turned out alright.

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