271–280 of 293 posts
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Blu-ray has been around for a good while now.
My local supermarket has 2-3 times more DVDs than Blu-Rays.
As a historical note, the bouncing logo wasn't just for fun, but was important to prevent screen burn-in on CRTs. If you had a static image on a CRT for a long time, it could damage the phosphor. Sometimes you could even see the image when the screen was off! This was the original purpose of screensavers, which saved your screen from damage. Displaying a dynamic image prevented one part of the screen from being overu…
I really wish modern vendors would stop shipping screensavers -- or at least refuse to disable them on non-CRT monitors. The energy waste, battery degradation, and keeping the CPU/GPU awake longer are all huge wastes. Sadly, screensavers are nothing but wasteful nowadays.
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I dropped a hint right there that the AC frequency is definitely not 60 Hz where I am.
Actually you didn't. There were many countries that used PAL for TV broadcasts but have 60hz AC.
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Why didn't we do this back in the CRT era, and invented screensaver instead, then? TV is understandable, you don't want a DVD player to show a black screen, otherwise it appears dead. But what about screensavers on computers, why did it come into being? (I know turning a CRT on takes time, but we don't have to turn it off completely to blank the screen either?) Update: It appears that the original motivation was publ…
Spinning up and down a CRT reduced its life-span, I wager.
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Or alternatively, write it as a CSS animation and modify it on collision.
Exactly. This is what CSS Animations [1] were made for. And you don't even need to do collision detection, as CSS can already alternate directions and loop infinitely. https://bouncing-logo-css.glitch.me/ Just needed a tiny bit of JS to set the sizes and randomise the logo colour. [1] https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Animati...
As a historical note, the bouncing logo wasn't just for fun, but was important to prevent screen burn-in on CRTs. If you had a static image on a CRT for a long time, it could damage the phosphor. Sometimes you could even see the image when the screen was off! This was the original purpose of screensavers, which saved your screen from damage. Displaying a dynamic image prevented one part of the screen from being overu…
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Earlier I commented about turning it into a mac screensaver. Well, I went ahead and did it. Used your code, but didnt have a license. Do I have your permission? Here is the link to the repo: https://github.com/pabloriveracelerity/mac-dvd-screensaver Please let me know if you do not approve and I will take it down ASAP. No ill intentions. Just wanted to join the fun. :)
Sure, thanks for doing it! I added a license to the original code.
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Spinning up and down a CRT reduced its life-span, I wager.
I don't think it was a major concern. First, you can always display a dummy black image without turning off the CRT. Also, VESA defines two "off" modes in DPMS (1993): blank and fully off. "Blank" allows the monitor to partially suspend without shutting down the CRT completely, which allows an instant recovery.
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And broadband adoption. I think streaming actually killed it, not a higher resolution format.
Doesn't Blu-ray still have better quality than most streaming services?