High-speed video capture of CRT scanline

Thanks for sharing the video. Very nicely done video and good explanation of how different technologies work.

My only comment would be at 4:12 he erroneously referred to his TV as 4K when it's actually UHD (two different resolutions and standards - the resolution he quoted is UHD). Yes, a very small knit-pick, but one that bugs me (the same as TV manufacturers saying their TVs are "HD" when they can only manage 720P vs. 1080P).

https://www.extremetech.com/extreme/174221-no-tv-makers-4k-and-uhd-are-not-the-same-thing

Scott C.

Oddly, in the video, when I watch it... when he says 4K, a subtitle comes on saying something to the effect of "OOPS...UHD"...

See:


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I watched it on my phone through Tapatalk, so maybe that got filtered. Glad it was noted.

Scott C.
 
I've seen those LED light bars that look like blinking dots until you move your head or eyes around, then they spill into a simple shape or figure, despite coming from a simple row of lamps. Freaky stuff. Thanks for "fleshing" it out!

I saw one of those at Disney Epcot years ago. It was basically a pendulum-style device that moved very fast and spelled out a message. Youtube is full of videos of similar devices called "propeller clocks".
 
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