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Tyrannosaur

255 karma · joined January 14, 2017

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Tyrannosaur··on French e, è, é, ê, ë – what's the difference?
No, you are correct.

Dr Geoff Lindsey on youtube:

short version: https://youtube.com/shorts/GF1gIaxnULc?si=d4jFC-rLOC5dww-8

long version: https://youtu.be/GNpbv7hJf6c?si=xNz1UjeLY0Ch9eDv&t=366

Tyrannosaur··on How the Turner twins are mythbusting modern technical apparel
No it doesn't. The absolute difference[1] of 1.8°C is the same as 1.8K; they have the same scale. The subtraction of values cancels out the offset.

A relative difference[2], usually given in percent change, has problems with a unit that has an offset zero like Celcius, but that isn't what anybody is using here. It's more than simple subtraction; you have to divide by the reference value.

[1] https://en.wikipedia.org/wiki/Absolute_difference#Applicatio... [2] https://en.wikipedia.org/wiki/Relative_difference

Tyrannosaur··on Meta Platforms: Lobbying, dark money, and the App Store Accountability Act
Why can't they?
Tyrannosaur··on The Problem of Teaching Physics in Latin America (1963)
Hot water recirculation is a thing I have heard of done in the United States. I don't know how common it is, but a simple Home Depot search brought up a bunch of results for options.

https://www.plumbingsupply.com/recirculating-systems-explain...

https://www.homedepot.com/s/hot%20recirculation?NCNI-5

Tyrannosaur··on All the Way Down
basically: "life, uh, finds a way"
Tyrannosaur··on SmartTube Compromised
You can install it on Roku?
Tyrannosaur··on First recording of a dying human brain shows waves similar to memory flashbacks (2022)
Start with the simple. Don't be a bystander. "Next time I see somebody berating a retail worker, I will defend them"

Although it usually needs to start more introspectively: "Next time I am about to lose my temper, I will take a deep breath and consider if yelling is the best course of action or rather something less aggressive."

With children, there's something to be said about them learning to stand up for themselves; tattletales aren't something to admire. But at some point it is actually the correct course of action to interfere with children-raising, especially when it affects my children.

Tyrannosaur··on First recording of a dying human brain shows waves similar to memory flashbacks (2022)
On the other hand, every effort each of us makes to eliminate bullying from this world is another effort toward making this world a better place.

The trick is to have those thoughts, plans, and actions actually lead to results rather than just anxieties about the past.

Tyrannosaur··on Show HN: In a single HTML file, an app to encourage my children to invest
For what it's worth, my reaction to the word "bloodline" used in this way is exactly what it would have been to the word "dynasty".

"Bloodline", as in, the line of inheritance for an extremely wealthy and powerful family, like Medieval monarchs.

Perhaps we should be a tad more careful about our language use, but I see far too much outright bigotry to be worried about something obviously not used as a dogwhistle.

Tyrannosaur··on How ancient people saw themselves
> "Collapse" is maybe hyperbole in this case, if it's building on our own history to extrapolate forward.

In the story, "at some point" generally involved technologies we are currently incapable of; the greater technology actually facilitating the greater collapse. Which at the most obvious included nuclear catastrophe.

Tyrannosaur··on Minecraft removing obfuscation in Java Edition
I was initially a little confused at your comment. I had thought the decision was against Oracle being able to sue for use of the Java API.

Reading a little closer, the decision was that even assuming the API copyright claim was valid, Google's use of the API was fair use.

> In April 2021, the Supreme Court ruled in a 6–2 decision that Google's use of the Java APIs served an organizing function and fell within the four factors of fair use, bypassing the question on the copyrightability of the APIs. The decision reversed the Federal Circuit ruling and remanded the case for further review.

https://en.wikipedia.org/wiki/Google_LLC_v._Oracle_America,_....

Tyrannosaur··on How ancient people saw themselves
It reminds me of Vernor Vinge's Zones of Thought trilogy, especially the observation the traders make in the second book that all planet-bound civilizations are doomed to collapse at some point. They are usually able to restore technological progress more quickly the more records they have, but without leaving the planet are still doomed to repeat the cycle. IIRC there is even more-or-less standardized "uplift" protocols - series of technological reveals for less-developed civilizations to rapidly advance/restore their capabilities.

I wonder if there is academic study comparing past-focused, future-focused, and cyclical views of human progress in literature.

Tyrannosaur··on How Silica Gel Took Over the World
I don't know where you are in Europe, but from my experience basketball is popular in France and courts are everywhere.
Tyrannosaur··on Bending Spacetime in the Basement (1997)
Do you remember how accurately you were able to measure the gravitational constant?
Tyrannosaur··on Undergraduate shows that searches within hash tables can be much faster
asymptotically close as you add 9s, but 9 repeating means you DO add an infinity of 9s, so it equals 1.

The reasoning that persuaded me initially was 1/3 is .333 repeating, 2/3 is .666 repeating, and 3/3 is .999 repeating.

Tyrannosaur··on Apple Ordered by UK to Create Global iCloud Encryption Backdoor
> That hasn't been "sensible corporate practice" since American civil rights were instated.

About that... https://www.cbsnews.com/news/trump-equal-employment-opportun...

Tyrannosaur··on Why it took a long time to build that tiny link preview on Wikipedia (2018)
Your tone comes across as sarcastic, yet I cannot believe you haven't met at least several people who have used computers for 34+ years who didn't know you can change some basic setting.
Tyrannosaur··on Romanian court annuls result of presidential election first round
Slight correction- Maine and Nebraska do not have proportional systems; they both use the Congressional District Method. Each congressional district votes plurality for an elector, and the 2 remaining electors go to the statewide plurality.

https://en.wikipedia.org/wiki/United_States_Electoral_Colleg...

Tyrannosaur··on Rust in Linux lead retires rather than deal with more "nontechnical nonsense"
Pretty sure I can get close to mapping that to solving the halting problem
Tyrannosaur··on Resource burden of electric vehicles set to triple by 2050
The key word is "decimated", as in, "decreased by 10%"
Tyrannosaur··on Apple unveils 'Passwords' manager app at WWDC 2024
Keepass2Android has been working great for me for almost a decade now

https://github.com/PhilippC/keepass2android

Tyrannosaur··on Some Americans have stopped tipping. Should you do the same?
> What we need is a mechanism where servers can be tipped directly bypassing management.

You should know, such a mechanism was invented thousands of years ago...

Tyrannosaur··on Sprint, T-Mobile Merger Killed Wireless Price Competition in U.S.
Meh, I was a smart-alec kid there with my friend. The salesperson had to go get a sim card "for the LTE to work" and I said "oh right, because LTE is GSM and requires a sim". The salesman insisted Sprint didn't use GSM so I looked up the wikipedia page for LTE on one of their demo phones and started reading out loud "In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA standards."

That's when the salesman told me to leave.

Tyrannosaur··on Sprint, T-Mobile Merger Killed Wireless Price Competition in U.S.
I once got tossed out of a sprint store for pissing off a salesperson with this factoid.
Tyrannosaur··on Rhyme as Reason
I took it not so much that the increased thought leads to more useful phrases, but that people are more likely to exert this effort toward things they think are useful, rather than lies.

You are going to remember "righty-tighty, lefty-loosey" better than "blue shoe, red bed" because you think it more useful. And you are vastly more likely to put effort into teaching the former to others.

When designing rhymes less for your own benefit and more for others, like advertising slogans, this obviously doesn't hold as well.

Tyrannosaur··on Disk write buffering and its interactions with write flushes
Yeah that does sound like the symptoms of the problem I discovered. If you ever witness it again, the trick is watching /proc/meminfo for the Dirty and Writeback numbers.

And it's the vm.dirty* settings to change to fix it as described here: https://lonesysadmin.net/2013/12/22/better-linux-disk-cachin...

Tyrannosaur··on Disk write buffering and its interactions with write flushes
It's possible you were seeing another problem, but this issue is more likely to appear with a faster network connection, because the network transfer happens faster than the disk writes.

You can confirm by watching /proc/meminfo and watching the Dirty and Writeback numbers.

Changing up the vm.dirty* settings can help as described here:

https://lonesysadmin.net/2013/12/22/better-linux-disk-cachin...

Tyrannosaur··on Disk write buffering and its interactions with write flushes
> Shouldn't it timeout only when the server is no longer ACK-ing packets?

That's exactly what happens. The server ACKs data until it fills its write buffer, and then stalls unresponsive until the entire buffer is flushed to disk. If it takes longer to flush the buffer to disk than the client's timeout, it gives up.

I have personally watched this happen via wireshark where the server doesn't ACK for more than 10 minutes.

Tyrannosaur··on Mass timber is great, but it will not solve the housing shortage
I am failing to persuade my brother of this. If someone desperately wants to live in a single-family home an hour away from the city center, they should want the city to be nice and dense and lots of cheap housing with great transit, because that will also make their dream home cheaper!
Tyrannosaur··on Airfoil
Negative pressure is not a thing, except you just described it.

If you take the difference between the pressures above the wing and below the wing, you get a negative number.

A thing not existing absolutely can still exist relatively.

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