btrettel

29 ms·

301.
by btrettel 5y ago
Fluid dynamicist here. I think these sort of blow-up results get far too much attention from the popular science press, and I don't know why. This is practically a pure math problem. Both the Euler and (constant viscosity) Navier-Sto
302.
by btrettel 5y ago
As a cyclist, when some driver waves at me to go contrary to the rules, I do something that looks like it's going to take 15 seconds or so like adjusting my helmet, pulling out my phone to check the time, etc. Seems to work with no fus
303.
by btrettel 5y ago
I recall reading a similar HN comment before: https://news.ycombinator.com/item?id=19414771 I browse the internet full screen, which often makes text blocks far too wide. It's hard to read long lines. Yes, in principle
304.
by btrettel 5y ago
I use Artha on Linux, which uses the WordNet database. It's fast and convenient. My only issue is that I would prefer using a more up-to-date fork of the WordNet database as I don't think WordNet has been updated in a while. http
305.
by btrettel 5y ago
> Possibly the most useful for others is a small wrapper around pdftk that splits a PDF file into smaller ones based on the "bookmarks" (the chapter annotations that many PDF readers show as outlines in a side bar). I'm in
306.
by btrettel 5y ago
Some recent small ones I wrote: - wgetcheck (Python): Downloads a file with wget and verifies a provided hash, for my convenience. Also automatically verifies internal checksums in zip, gz, and other archives, and verifies the size and MD5
307.
by btrettel 5y ago
One problem I've observed is that people applying things often cargo-cult "proven" things from the scientific literature that aren't actually proven. It's easier to say that you're following "best practice
308.
by btrettel 5y ago
> How do you decide what is relevant, and what not, if not with some statistical/ML methods? To be clear, you're referring to software determining relevance. I can determine relevance on my own, though it may be time consum
309.
by btrettel 5y ago
When I worked as a patent examiner, it seemed to me that the bottleneck in searching is usually the searcher, not the specific search technology. Many technical people (for example, HN folks) tend to severely overestimate their own search a
310.
by btrettel 5y ago
The word "all" never appeared in my post. You wrote "Here are some of the many of Los Angeles Times’ newspaper headlines". A reasonable person would understand that quote to say that the headlines are from the LA Times,
311.
by btrettel 5y ago
Ignoring the fact that cherry picking the worst headlines says little about the average quality of journalism, I started looking into these claimed headlines and found that many were not in the LA Times, some were not headlines (they seem t
312.
by btrettel 5y ago
The police didn't care about the bad driving, just that the driver tried to stab me. That's despite the fact that I think the driver nearly running me over was more dangerous than their attempt to stab me!
313.
by btrettel 5y ago
> As I said elsewhere I have nothing against bikes, but I do have a bone to pick with people who suggest cars/bikes/pedestrians belong on the same grid such that they routinely interface with one another. Do you believe that fo
314.
by btrettel 5y ago
I rarely ride on roads with speed limits 45 mph or faster. I can't recall riding on roads with speed limits above 35 mph in recent memory, in fact. And 5000 lbs is quite heavy as that's more than a F150. Many non-cyclists' p
315.
by btrettel 5y ago
As a cyclist, I see a lot of dangerous driving, and a lot of hypocrisy with regards to the law on the roads. Unfortunately, I'm seeing some of that hypocrisy in the comments here. Here's a good example of the hypocrisy: A lot of d
316.
by btrettel 5y ago
My experience in the US is that video alone is not sufficient to get a bad driver arrested. I'm a cyclist, and I was able to get a driver arrested for some misbehavior through a combination of helmet cam video and the fact that they
317.
by btrettel 5y ago
> No, delta-speed kills and seriously injures people. Both are dangerous. I've heard the delta-speed argument a lot before and its proponents do a good job explaining why it's bad, but the fact is that absolute speed does matte
318.
by btrettel 5y ago
I'm a cyclist who often rides with a helmet camera due to misbehavior from drivers, including speeding. Does the app only allow one to measure speeds in video recorded in the app, or could I upload a short clip of an offending vehicle
319.
by btrettel 5y ago
I can't agree with a heavy emphasis on text search and having a minimal or even no organizational structure, as several folks here have suggested. Text search and an organizational structure each have their own advantages and disadvant
320.
by btrettel 5y ago
Contact the host. I can't recall if I've done this before but I do recall that it often works.
321.
by btrettel 5y ago
Noted, thank you much.
322.
by btrettel 5y ago
> First of all, the magnetic gauss needed to flip bits on LTO media is huge. It's not a practical concern unless you're choosing an incredibly inappropriate storage location. You're right, it does seem huge: https:/&
323.
by btrettel 5y ago
I don't know how likely some sort of electromagnetic event is. I just figure that if I'm going to diversify my backup strategies then something dissimilar/uncorrelated would probably be a better choice. My data is on magnetic
324.
by btrettel 5y ago
One thing that keeps me from trying tapes is that they are still magnetic. If there's some sort of local electromagnetic event then I'd prefer to have a backup that can handle that. I keep some backup hard drives in metal boxes, w
325.
by btrettel 5y ago
Many disk imaging programs have similar features. I'm partial to GNU ddrescue. https://en.wikipedia.org/wiki/Ddrescue
326.
by btrettel 5y ago
> I wonder if like with floppy disks and drives, modern CD drives are less capable than old ones because they're no longer a premium product? When I ripped CDs I had from the 00s in 2019, I used an external Blu-ray drive from probab
327.
by btrettel 5y ago
> What I didn’t realise at the time, was that all these CDs and DVDs would become a grand experiment of reliability and longevity. When I read data from these backup disks in 2021, I had a 100% success rate! My own experience is pretty g
328.
by btrettel 5y ago
HN link on the Steam bug: https://news.ycombinator.com/item?id=8896186
329.
by btrettel 5y ago
I don't think so. Saving a webpage to Zotero involves pressing one button in your browser.
330.
by btrettel 5y ago
Looks like Zotero used to not save in a single file but now does.

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