Those are not prism. Prism implies it used as dispersion component, which is not the case. The thing does the real work there is the dichroic thin film coating on those prism shaped glass.
Lenovo is releasing 16:10 screen for their next generation laptops lines. So it is a matter of time till replacement screens for those to come up on ebay. I guess?
Digikey changed their website last year and the specific nuance the article mentioned is not being implemented. Made my life a bit more miserable when purchasing electronics components.
My personal opinion is that the eye development is an adaptive process. During the eye development, the body has a feedback system that make sure the eyeball size matches the lens focusing capability so that the eye can focus to infinity. However, nothing can tell the feedback process what infinity is, thus I guess, the eye will assuming the most commonly archived far side focusing condition is the "infinity". Well, in modern days, people spend so much time in door and in front of computers, the body believe that is likely the infinity focusing condition, and thus the feedback system grow the eyeball bigger to make that the "infinity focusing" condition.
Obviously, this is a personal opinion, there is no science to back it up.
This tracks for me. As a kid I spent lots of time randomly staring up close at the smallest of details I could, deliberately shifting my focus and gaze on magic eye books, and frequently staring far off into the distance to see how far away I could still make out things like individual leaves on trees. I'd even do it indoors, curious to see how dirty/clear/distorting the window glass was, or see how far across the room I could make out details like felt tufting or smaller brickwork or mortar texturing.
If I'm honest I still do most of this from time to time, just less magic eye books and a lot less impulsively thanks to years of learning to keep my ADHD under control, oh and drugs help too.
This sort of fits into what I said here https://news.ycombinator.com/item?id=30412140 talking about ADHD. The adaptive process of someone who is more neurotypical will not include a heavy dose of random distracted looking around the room. ADHD may skew the scale on the feedback process by adding in a lot more further focusing events. Even randomly focusing across a classroom is probably beneficial.
I upvoted, because it is an extremely interesting theory, which could potentially explain vision problems. But unfortunately it is simply does not fit real world data: a lot of kids around 6yo start loosing ability to focus on stuff right in front of them (like a book) despite both reading quite a bit, and spending significant time outside.
Now add in the fact that wearing minus lenses for close works restarts this process of hormesis, and you begin to realize that the entire optical industry ends up worsening a problem that they conveniently offer a "solution" to. Any minus lenses you purchase need to come with a big warning that they should not be used for distances closer than the focal plane.
The kafka-esque part is that they're well aware of the issue, because many of the lens companies (hoya, zeiss) have come up with "myopia control glasses" which are basically just minus lenses but with reduced power on the periphery, which they'll gladly sell you for added markup. It's no surprise that these are better than full-on minus lenses for close work, but you know what would be even better? Telling children to remove their glasses when using the computer or reading. But that doesn't bring in any profit.
Special scorn should be directed towards those that prescribe glasses for young kids for something as low as 0.25 diapers. And those that prescribe unequal power two both eyes rather than advising patching to equate both eyes.
This is exactly what I think is the reason. We are adapting for environment that we are in every day. Monitor, phone screen, tablet, books... There is less and less time we spend looking into "infinity".
Windows's quality has been downhill quite a lot. For the past more than a year, I struggle with intermittent touchpad scroll failure on multiple laptops (including surface pro, thinkpad, etc). Of course, the only support you can get from searching the web is to update the driver. In this case, I don't think driver is the problem, the windows multi-touch and precision touchpad component has internal bug, the cause scrolling, either touchpad or touchscreen, to loss response every a few minuets for 15s-ish period. Super annoying when you browse web without a mouse. I don't see any solution in the foreseeable future. Unfortunately, I cannot just dump all my windows PC and switch to either mac or linux, because I stuck with a few CAD software that only runs on windows.
Assuming the AI work perfectly, it will only be as good as the circuit simulation it can do. Unfortunately, there are some many things the start-of-art circuit simulation software cannot do. I really doubt the claim the author made here.
Back in time around year 2000, Scientific American had published an article about using genetic evolution algorithm to create circuits. 20 years later, the same idea keeps pop up again and again, but no commercial product has really claimed they were generate by algorithm.
Because all such projects are purchased by cadence and other biggies and killed. The workflow is also completely different that it takes time for engineers to trust the new workflow. The difference between 20 years and now is the computing power. ( I have worked on such an automation tool )
This is to the point. The universe is a giant big computer even without quantum involved. If the starting state of the computation is not predefined, the so-called computer is no difference from randomly flipping some coins.
What the paper showed is no difference from showing the wind did not change the result of coin flipping.
I have both the Puhui T-962A and DIY conversion oven. The Puhui T962A will consistently burn your board. You solder joint will come out black as the temperature goes way beyond proper lead-free temp. You will never be able to solder any film capacitor. Any film cap you put into T962A will come out melted/exploded. It actually save your time to build you own oven then by the off-the-shelf T962.
Works fine for us! Haven't had any issues to date, must have done over 100 different boards. There is third party firmware[0] for better control including an active fan if you run in to issues. Thanks for the tip though.
The picture in the original article is an exaggeration of the real condition. There are bunkers with much better condition than what the picture shows and still very cheap to live in. I have lived in those bunkers for short time about 15 years ago. It wasn't worse than than a typical university dormitory except no windows.
It isn’t that much of an exaggeration. I’ve seen where the ant tribe lived in my own apartment building near Sanyuanxiqiao, it was very similar to the article.
