mgsouth

28 ms·

211.
by mgsouth 5y ago
Its got to be a snippet. Suprisingly hard to track down with DDG or Google, though. Here's something pretty similar [0]. It's from a course powerpoint, and my guess would be a student or web searcher modified it. def eval(x,
212.
by mgsouth 5y ago
This blog entry shows a couple of last-minute changes, but I haven't found any release notes yet. However, here is a list of development hightlights blog posts [0] and the 6.0.0-rc1 milestone page [1]. [0] https://www.kicad.
213.
by mgsouth 5y ago
Slamming on the brakes can be hard on the electronics. It causes large, high-speed voltage or current spikes that kill (old, tired) components before the spikes can be clamped. Can be made worse by old electolytic caps that no longer filter
214.
by mgsouth 5y ago
The most striking aspect is that he was explicitly optimizing for project difficulty . I smiled when he said, in effect, 'let's mathematically calculate How Hard Can it Be'. Sure kid... But that's what he did. Fantastic
215.
by mgsouth 5y ago
Specs for the 1LT8 chip used in the HP48SX. This is a text file without drawings. An excellent PDF scan of the original (including drawings) is at https://literature.hpcalc.org/items/2117
216.
by mgsouth 5y ago
I can't decide between the "Rational Goose Secrect Society" or the "Just Squirrel Whisky Club". The first one is NOT A SCAM, but the second... well, whisky.
217.
by mgsouth 5y ago
You could slam a blast door closed behind the exiting projectile. It should be possible to place it in the exit tunnel so that it is fully closed before the inrushing atmosphere gets to it.
218.
by mgsouth 5y ago
There's a slide in Manley's video that says gross vehicle weight is 11,000 kg. And 450 RPM @ 100 m diameter, so 2 km/s. Kinetic energy for vehicle is 22 GJ. Equivalents: * 5 metric tons TNT * 1/3000 Little Boy atomic bom
219.
by mgsouth 5y ago
How far can you go until the losses are over 160 dB? Reason I'm asking is that LTE Cat-M (low-bandwidth IoT) go that low, or lower [0]. GLONAS (GPS) receivers deal with over 180 dB of loss [1]. It depends on the power level in the tran
220.
by mgsouth 5y ago
Feature request: Don't reset moment and momentum when released. I want to spin and fling them :)
221.
by mgsouth 5y ago
I have an acquaitance who got hit; he didn't realize it until the next day, though. It was probably literally a meteorite and not a meteor. It was during one of the showers (Leonids?). He was outside watching the show, and felt somethi
222.
by mgsouth 5y ago
Go uses duck typing. "Interfaces," such as Food or Animal, declare sets of functions that must be implemented in order to qualify as an object of that type. So a "Food" thing might need to implement "beInjested()&qu
223.
by mgsouth 5y ago
If you're asking "is this statement true but unprovable", then no, that would itself be a proof. It is possible to show that, within a particular set of mathematical rules, some statements are "either true or false, bu
224.
by mgsouth 5y ago
...and "solutions journalism" itself sounds like an interesting topic. There are lots of posts on HN discussing journalism in general, challenges faced by "serious" news orgs, and fresh takes. Searching for "journal
225.
by mgsouth 5y ago
Is it an anti-pattern? Depends. Good database design has a single canonical represention for any particular bit of information. In part this is to avoid all-too-easy inconsistencies--"a person with two watches never knows what time it
226.
by mgsouth 5y ago
Ex: 412 1/2 E E NE 412 1/2 A E 1E MAIN 1 E MAIN FOO & BAR 123 ADAM WEST RD 123 ADAM WEST 123 EAST WEST
227.
by mgsouth 5y ago
> Meteorologists know how to calculate the exact weather six hours in advance. It's sadly useless knowledge, at present, because the best staff of [human] computers needs six weeks of calculating to do it. But a machine, now-- Art
228.
Modern Calculators – Locke – Astounding Stories (1949)(archive.org)
2 points by mgsouth 5y ago|1 comments
229.
by mgsouth 5y ago
Ahhh. I think there's a misunderstanding. Proving P=NP is saying "given, for algorithm A, that it's easy to verify any proposed result y and input x, it follows that it's also easy to calculate a result for any input
230.
by mgsouth 5y ago
"n" is the number of bits (what you referred to as "X"). Storing one value into a tree is O(log(X)). However, storing all possible values for X bits is 2^X operations, each of which requires log(X) sub-operations to st
231.
by mgsouth 5y ago
I'm not really clear about what you're describing, but a few thoughts... log(t(A, X)) * log(t(A, X)) is log(t)^2, not 2log(t). Not sure if "split memory not by halves but by interleaving fragments" is crucial, but splitt
232.
by mgsouth 5y ago
Yes, but you can only do justice to one of them. -or- No. There is, in fact, only one hyper-hyper-dimensional rabbit hole in the multiverse. It intersects all possible problem spaces one or more times; any rabbit hole you encounter is just
233.
by mgsouth 5y ago
Nice paper, how did you find it? Assume you posted in response to the recent YouTube video. The paper shows the math for land and water versions. Says a vehicle was tested in Feb. 1969, got an estimated 15 MPH out of 10 MPH breeze, but they
234.
by mgsouth 5y ago
This has got to be one of the best mea culpas I've seen in a long, long time. If anyone internal gives you heat, you can tell them that, for this current non-client, it's actually moved Tripplebyte from "never in a million ye
235.
by mgsouth 6y ago
To wit, "to filter" -> "filter to".
236.
by mgsouth 6y ago
It's obvious why you were downvoted. Its Rye or go home.
237.
by mgsouth 6y ago
It's been refuted. https://www.quantamagazine.org/famous-experiment-dooms-pilot...
238.
by mgsouth 6y ago
Johns Hopkins CCSE data has been showing a weird abrupt flattening of California 7-day rolling averages beginning 3 weeks ago, between 7/11 & 7/21, for both cases and deaths. [0] [1] It looks more believable if you show the da
239.
by mgsouth 6y ago
Some sort of corrective system is required to adjust the raw aerodynamics of the 737 MAX. It some conditions it has characteristics which are not allowed for commercial planes in the US. [0] This is not, in itself, a problem. Many (most? al
240.
by mgsouth 6y ago
Hypothesized that cytokine storms would be a problem, as in 1918 pandemic, but also thought it would affect young adults worse. Also interesting is that someone posted it to HN a year ago, but didn't get any traction.

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