venning

15 ms·

121.
by venning 10y ago
Correct me if I'm wrong, but some of this sounds like blitting , except optimized for the in-memory structure and not the on-disk structure. In 2008, Joel Spolsky wrote about 1990s-era Excel file formats and how they used this techniq
122.
by venning 10y ago
It's likely a usage-related calculation. If an intersection is known to nearly always have cars but rarely pedestrians, a walk signal makes sense. In Washington, DC, most intersections do not have a traffic button, so pedestrians and
123.
by venning 10y ago
If I know that I'm going to try to compromise a system and access its username/password lists, is there an advantage to creating a number of accounts to which I know the password prior to the break-in? Does this make it easier to
124.
by venning 10y ago
I'm guessing not. Your comment is my first result in Google search for "keyboard walk" dvorak . Edit: Ars Technica had a piece a while back on crackers and how they build their lists of probable passwords. I imagine if Dvo
125.
by venning 10y ago
This is known as a "keyboard walk" and its variations are one of the more common patterns tested for.
126.
by venning 10y ago
The pneumonia-asthma example seems to be an example of a Simpson's paradox [1]. The doctors acted on a strong (accurate) belief about asthma sufferers contracting pneumonia and acted in such a way that the data obscured an actual caus
127.
by venning 10y ago
I know. I've edited my comment to reflect that. FYI, DanG already detached a similar comment: https://news.ycombinator.com/item?id=12341452
128.
by venning 10y ago
I know: https://techcrunch.com/2016/01/08/y-c-switches-up-its-manage... Edit: I didn't provide much context. He is Paul Buchheit, a (the?) managing partner at YC Core.
129.
by venning 10y ago
Thank you for your response, Mr. Buchheit. I really appreciate it. This is the answer I was looking for, one that explains your driving intentions. I'm nothing like a venture capitalist or investor, so I appreciate that I may not hav
130.
by venning 10y ago
Not that my opinion matters for anything, but I don't want to call out specific companies as having "low" potential. Now is probably uncertain and stressful for each of them, and I wouldn't want to undermine anyone&#x27
131.
by venning 10y ago
That's not quite my question. I'm not referring to the divide between "pure software" businesses and, well, everything else. I'm referring to the divide between $10MM/year gross profit and $1B exit. Dollar Sh
132.
by venning 10y ago
Honest question: have the specific funding goals of YC changed to accommodate more pedestrian "lifestyle" businesses? A number of these companies look like they could make viable businesses turning out respectable multi-million-d
133.
by venning 10y ago
I do appreciate stories such as this. I don't draw any conclusions from them, but they are nice data points to have. New technology comes with new performance and safety envelopes, often unknown even to the engineers who design them.
134.
by venning 10y ago
Gmail did something like this back when it had ads. If it detected an email related to a death, it would attempt to block related ads from displaying above the content, so you didn't get pestered with ads for funeral services while re
135.
by venning 10y ago
> "It's low risk, low cost," National Institutes of Health dentist Tim Iafolla told CNBC. Isn't risk something that should be determined by study? I can think of a couple ways that flossing may actually damage a mo
136.
by venning 10y ago
RSI stands for "repetitive strain injury": https://en.wikipedia.org/wiki/Repetitive_strain_injury (for those of us who didn't just know this)
137.
by venning 10y ago
I imagine Basecamp would consider their employees to be the future of their business, so these benefits are reinvestments.
138.
by venning 10y ago
This might be a better link, which includes a brief write-up of the work: http://www.stefankrause.net/wp/?p=301
139.
by venning 10y ago
Considering the machine was built in the US in 1965, it's not surprising that the machine used imperial units. Based on Wikipedia's table [1], it looks like metrication had not yet begun in a large number of countries by 1965.
140.
by venning 10y ago
> Most of all, the thing I'd be intersted in is how resistant to error is the design? I feel like this is what keeps the most impressive research out of real world application. Yeah, manufacturing is expensive, but tolerances are
141.
by venning 10y ago
Following up, it looks like Mahle has actually been tying to address the NOx production. The OP links to this article [1] from 2010, which is mostly taken from three SAE papers that indicate they have been able to constrain the NOx in jet
142.
by venning 10y ago
The biggest problem with road cars using valve springs (or indeed engines) that run at 20,000 RPM isn't technological; the issue is practical. Valve springs that function properly at 20k are going to be strong and produce serious resi
143.
by venning 10y ago
The plasma jet injection thing sounds pretty novel, but I imagine a lot of the efficiency gain is tied up in the lean burn. The brake thermal efficiency gains of lean burn are well known, as are the reasons we don't use them in modern
144.
by venning 10y ago
A shorter, possibly easier to understand writeup from six months ago: https://www.mikeash.com/pyblog/friday-qa-2015-11-20-covarian... I believe it was written by an HN commenter, and accumulated 67 comments: https:&#x
145.
by venning 11y ago
Damn Interesting has a piece on the race to produce the first liquid hydrogen over a century ago: http://www.damninteresting.com/absolute-zero-is-0k/ From the article: "He did so with the full awareness that he w
146.
by venning 11y ago
I assume that Uber is not competing with black market interest in bugs, rather they are competing against interest in other bug bounty programs. The number of people who earnestly compare rates between bounty programs and black market buy
147.
by venning 11y ago
To your point, bombs are not chemistry, bombs are the application of chemistry. Encryption is not math, encryption is the application of math.
148.
by venning 11y ago
I don't see a support feature on the site, but since this is a YC company, I figure I can list an issue here: @whois google.com is not working. It just replies: "@whois: Please enter a valid domain name. Example: @whois google.
149.
by venning 11y ago
If the phrase was "1.6x speedup" then I would agree and not have commented. But the phrase is "1.6x faster", which is a bit ambiguous. That there is disagreement among the commentariat both ways is indicative of ambigui
150.
by venning 11y ago
Correct, at the extremes, the numbers don't matter. But where it says "1.2x slower", it really means "84% of baseline" [1], which might be a bit misleading. [1] https://github.com/kpdecker/six-

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