liminalsunset

25 ms·

181.
by liminalsunset 5y ago
The iPad Pro 2020 uses a PWM frequency of 60kHz or so, and only under 13% brightness according to NotebookCheck. This is unlikely to be a problem. True tone, iirc, is a simple color temperature adjustment of the screen. I wonder what happen
182.
by liminalsunset 5y ago
More on the technical side of this, solving the PWM LEDs issue isn't actually as easy as it may seem to begin with. It comes down to 1) Analog is hard, and so is high speed PWM 2) Some engineers (and online engineering resources) belie
183.
by liminalsunset 5y ago
https://youtu.be/IExXIegZhsM?t=513 There is a longer video about the device, but the linked video should start at the "good bits"
184.
by liminalsunset 5y ago
Reminds me of when I was tinkering with a little laser DLP/LCoS projector. I didn't have laser protective glasses, but I wanted to observe the open internal optical path of the projector, which probably had several watts of laser
185.
by liminalsunset 5y ago
There's a $8 or so app called hearEQ that trains you on the pink noise or music part of this I think.
186.
by liminalsunset 5y ago
I remember this from a few years ago when it was posted to HN. I remember it for originally shipping with a really good clone of the macOS windowing system down to the three colored buttons - when you clicked them the buttons popped out to
187.
by liminalsunset 5y ago
Amazon sells Leviton (a good/common brand) electrical outlets that support USB C power delivery for ~40USD. You can install one, and connect a USB C PD to DC cable ~20USD to power your LEDs. Your LEDs have to be 30W or less though.
188.
by liminalsunset 6y ago
For what it's worth, at the school this happened at, UBC, Proctorio is now effectively banned, along with other similar "algorithmic" proctoring tools, and exams are no longer allowed to use it with some exceptions. They&#x27
189.
by liminalsunset 6y ago
Is them releasing a keyboard (detached and presumably replaceable) with a Touch ID sensor basically an admission that the iPhone Touch ID did NOT have to be permanently paired to the phone to keep it secure? Because in this case you can rep
190.
by liminalsunset 6y ago
Might be late to the party replying, but I really like the concept. Just tried it out. The nitpicks: First panel of Apple App Store listing; would it be better if it said "Help friend[s]" or "Help [a] friend" instead of
191.
by liminalsunset 6y ago
Out of curiosity, does the use of OSB on the surface contribute much to indoor formaldehyde levels? Growing up, my parents avoided buying furniture or houses made of composite wood materials with lots of exposed glue out of concerns of offg
192.
by liminalsunset 6y ago
I think you're thinking about SMR - Shingled Magnetic Recording. The tracks overlap because the heads are larger for writing than for reading, so writing can be a destructive process and data must be rewritten when adjacent data is wri
193.
by liminalsunset 6y ago
Looks wonderful! Just a quick question - is Thunderbolt or USB4 support provided? I havent seen a mention of it on the site yet Thanks!
194.
by liminalsunset 6y ago
Wanted to clarify that this wasn't the Apple ID activation lock screen. This was asking for my regular user password for an account that had been deleted from the system. Activation Lock only runs when the system is doing the first use
195.
by liminalsunset 6y ago
There actually is a way to do this easily, and it only seems to work if you have FileVault enabled. Boot into recovery, when it asks for a password say youve forgotten it, you don't have a key, and click the resulting "Erase Mac&q
196.
by liminalsunset 6y ago
Big Sur appears to have introduced several new security features that complicate this process. I attempted a wipe on my 2019 16" Intel MBP to upgrade to Big Sur.... and after this, it required you to do something like sign in with a us
197.
by liminalsunset 6y ago
Was personally hoping for a noise-normalized version of the test, as well since I'd imagine most people aren't going to keep an air purifier running on high, and the low setting may not deliver the requisite airflow.
198.
by liminalsunset 6y ago
Some additional info about this device is available from Energy Star to confirm the CADR ratings are in cfm. [0] This is odd, as the standard for CADR is often in m3/h. That works out to about 420 ish m3/h in this case. I rememebe
199.
by liminalsunset 6y ago
Interesting enough there is a device from Intel called RealSense that looks very much like a Leap Motion, the R435, sold for 275$ which purports to add a finger tracking interface to any current UI with a simple driver install and no change
200.
by liminalsunset 6y ago
On the website it looks like it says Android and iOS via Element [appears to be the renamed Riot.im matrix client]. Is there no custom iOS or Android application for Beeper that this will ship with?
201.
by liminalsunset 6y ago
When it comes to progress bars that lie, I think of two major examples: 1) Apple software updates or OS installs usually never have the bar progress past 30% or so. I don't think they lie, so much as 100% is actually at 40%. 2) Windows
202.
by liminalsunset 6y ago
Seems like it's not running right now as it's after hours, but here's a YouTube video I found of it running: https://www.youtube.com/watch?v=il7MffVEIC0
203.
by liminalsunset 6y ago
It's an interesting concept, indeed. I think it would be really neat if all the screens were mounted with some form of a clever "multimonitor mount arm" kind of setup - it could have a really flat version of that in the back,
204.
by liminalsunset 6y ago
Unintuitively, you can disable the key on the stock keyboard. You go to Settings and turn Dictation on. (Yes, I know, bear with me.) THEN, you turn it off. And that should cause the button to disappear. It's really unintuitive, I know.
205.
by liminalsunset 6y ago
They've stated that they target 10W in the Air, the cooling system in the Pro is identical to the Intel so probably 28W ish, and the Mac Mini specs say maximum 150W continuous power, but that probably includes a few tens of watts of US
206.
by liminalsunset 6y ago
For those looking for some form of TDP estimate for the M1 in a relatively thermally unconstrained form factor: Apple's web site lists the following for the Mac Mini: "Maximum continuous power: 150W"
207.
by liminalsunset 6y ago
Hypothetical question: What if the client side of this program was open-source, and all it did was record the screen and web camera, and upload a copy to a server that was run by the school on premises. Would this change your view on the so
208.
by liminalsunset 6y ago
One of the other issues to keep in mind is the actual amount of light output by the point source. Some SMD LEDs output a non trivial amount of light in a very small area - if you put black electrical tape, the high power density (over a ver
209.
by liminalsunset 6y ago
Lightning cables have exposed contacts - While at 5V, this does not pose a significant shock risk, if full current were available, brushing the connector against metal could result in sparks and damage to the connector or power supply. Addi